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TZID:Europe/Paris
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260312T130000
DTEND;TZID=Europe/Paris:20260312T140000
DTSTAMP:20260404T100934
CREATED:20260213T093616Z
LAST-MODIFIED:20260226T095902Z
UID:10000066-1773320400-1773324000@sfp-alpes.fr
SUMMARY:Stéphane GUINDON (LIRMM - Montpellier)
DESCRIPTION:Recent advances in phylogeography\nContact : lucie.lamothe@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/stephane-guindon-lirmm-montpellier/
LOCATION:IMAG – Salle de Réunion\, 150 place du Torrent\, St Martin d’Hères\, 38400\, France
CATEGORIES:Séminaire
ORGANIZER;CN="TIMC - IMAG":MAILTO:lucie.lamothe@univ-grenoble-alpes.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260313T110000
DTEND;TZID=Europe/Paris:20260313T120000
DTSTAMP:20260404T100934
CREATED:20260227T095412Z
LAST-MODIFIED:20260227T095425Z
UID:10000078-1773399600-1773403200@sfp-alpes.fr
SUMMARY:Peter DAHLBERG (Stanford University\, USA)
DESCRIPTION:Fluorescence-guided cryogenic FIB milling and their application to the study of the NLRP3 inflammasome\nRésumé : \nNumerous critical events in cell biology depend on rare ( 1 copy per cell) and small (<500 nm in diameter) structures. Observation of these processes at high resolution using cryogenic electron tomography (CryoET) presents challenges\, as the structures must first be precisely targeted within thin sections through focused ion beam milling. In this presentation\, I will introduce my group’s work on a tri-coincident system that integrates light\, ion\, and electron microscopy at a single focal point. This approach enables real-time monitoring of the milling process and makes two different modes of guidance possible that require no addition of fluorescent fiducials or image registration and whose accuracy far exceeds the optical diffraction limit. I will discuss both guidance modes in detail and then describe their application to the study of the in situ structure of the NLRP3 inflammasome. Despite its central role in innate immunity as a master regulator responsible for proinflammatory cytokine maturation and cell death\, its in situ structure has remained elusive due to challenges in capturing the small singular punctum it forms per cell in thin sections compatible with CryoET — precisely the kind of target the tri-coincident system was developed for. Using our guidance approach\, our cryo-tomograms revealed that the NLRP3 inflammasome forms a dense condensate within and around the microtubule-organizing center. At a later stage after activation\, we saw further growth of the condensate\, and the cells underwent pyroptosis with widespread mitochondrial damage and autophagy. Our study revealed new insights into NLRP3 structure and other organelle alterations during inflammation. \nContact : ibs.seminaires@ibs.fr
URL:https://sfp-alpes.fr/event/peter-dahlberg-stanford-university-usa/
LOCATION:IBS – Salle des séminaires\, IBS 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
ORGANIZER;CN="IBS":MAILTO:ibs.seminaires@ibs
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260316T110000
DTEND;TZID=Europe/Paris:20260316T120000
DTSTAMP:20260404T100934
CREATED:20260312T153257Z
LAST-MODIFIED:20260312T153303Z
UID:10000100-1773658800-1773662400@sfp-alpes.fr
SUMMARY:Martha MERROW (LMU Munich\, Germany)
DESCRIPTION:A circadian clock in Bacillus subtilis\nRésumé : \nThe circadian clock is a molecular machine that is present in each one of our cells\, directing diverse processes in a cell(developmentally)-specific manner. The natural state of the clock is ‘entrainment’\, namely through synchronization with zeitgeber signals (such as the light/dark cycle) in the environment. Once moved to constant conditions\, a free running rhythm of approximately 24h can be observed\, demonstrating the endogenous nature of the clock. One can understand how the clock relates to our lives by noting the timing of the sleep wake cycle: this is determined by the interaction of the biological (circadian) oscillator and the external zeitgeber cycle. Disrupting the clock in humans and mice leads to increased cancers\, metabolic disease and decreased cognitive performance\, likely through misexpression of key regulators. The circadian clock is an essential aspect of biology and its function can be regarded as a biophysical phenomenon. \nCircadian clocks have been described in all kingdoms of life except for the Eubacteria – until very recently. I will discuss the circadian clock in the model prokaryote\, Bacillus subtilis. We observe rhythms in gene expression\, in colony morphology on agar\, and in metabolism and in planktonic cultures. The circadian transcriptome shows pervasive regulation of gene expression by the biological clock\, even more extensively than sigma factors. The clock is thus a major regulatory phenomenon in this bacterium. Our work begs the questions ‘what is the same as clocks in higher organisms?’ and ‘what is different?’. \nContact : irina.mihalcescu@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/martha-merrow-lmu-munich-germany/
LOCATION:LiPhy\, Salle de Conférence\, 140 rue de la Physique\, St Martin d'Hères\, 38400
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260317T140000
DTEND;TZID=Europe/Paris:20260317T150000
DTSTAMP:20260404T100934
CREATED:20260227T085330Z
LAST-MODIFIED:20260227T085338Z
UID:10000075-1773756000-1773759600@sfp-alpes.fr
SUMMARY:Klaus MØLMER (Niels Bohr Institute\, University of Copenhagen)
DESCRIPTION:Quantum optics with radiation on the move\nRésumé : \nWith the scaling of quantum technologies to many separate material quantum components\, we may have to couple these systems by propagating quantum radiation\, in the form of light\, microwaves or phonons. There are\, however\, rather fundamental obstacles to the treatment of propagation of quantum radiation and its interaction with matter. These obstacles include the general multimode character of propagating fields and the duration and spatial extent of useful light and microwave pulses. The talk will review a recent theoretical approach to deal theoretically with these obstacles\, and it will present examples of new\, unforeseen\, possibilities for easy preparation and manipulation “on the fly” of quantum states of light and matter. \nCoffee and croissants will be offered after the colloquium in front of the room ! \nPersonne à contacter : Michele Filippone (michele.filippone@cea.fr)
URL:https://sfp-alpes.fr/event/klaus-molmer-niels-bohr-institute-university-of-copenhagen/
LOCATION:CNRS – Salle René Pauthenet (J229)\, CNRS – LNCMI\, 25 avenue des Martyrs\, Grenoble\, 38000\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260317T140000
DTEND;TZID=Europe/Paris:20260317T150000
DTSTAMP:20260404T100934
CREATED:20260227T144116Z
LAST-MODIFIED:20260227T144239Z
UID:10000085-1773756000-1773759600@sfp-alpes.fr
SUMMARY:Montserrat SOLER-LÓPEZ (Macromolecular X-ray Crystallography\, Imaging and Scattering Group\, ESRF)
DESCRIPTION:Mitochondrial Bioenergetics in Alzheimer’s Disease : Insights from the European Synchrotron\nRésumé : \n\nAlzheimer’s disease (AD) is a devastating neurodegenerative disorder increasingly linked to defects in mitochondrial bioenergetics. At the European Synchrotron Radiation Facility (ESRF)\, we investigate the structural and functional mechanisms that underlie mitochondrial dysfunction in AD\, with a focus on respiratory complex I\, a central player in cellular energy production [1\,2]. \nUsing an integrative biology approach\, we combine macromolecular crystallography\, cryo-electron microscopy\, X-ray imaging\, and spectroscopy to analyse the architecture and regulation of mitochondrial complex I and its assembly factors (MCIA proteins) across spatial and temporal scales. Our structural and functional studies reveal novel regulatory mechanisms of energy metabolism\, including phosphorylation-dependent modulation at the interface of respiration and fatty acid oxidation. Importantly\, we demonstrate that AD-related amyloid oligomers disrupt these regulatory processes within neuronal mitochondria\, thereby contributing to oxidative stress and impaired bioenergetics in AD [3\,4]. Recent synchrotron-based imaging\, including X-ray fluorescence and nano-tomography\, has further provided first insights into the ultrastructure of mitochondrial assemblies in situ. \nCollectively\, these findings highlight how the ESRF’s interdisciplinary\, state-of-the-art methodologies enable breakthroughs in deciphering the molecular basis of neurodegeneration\, offering new perspectives for diagnostic markers and therapeutic strategies targeting mitochondrial dysfunction in Alzheimer’s disease. \n[1] Giachin et al. Dynamics of Human Mitochondrial Complex I Assembly: Implications for Neurodegenerative Diseases. Front. Mol. Biosci. 2016\, 3:43 \n[2] McGregor & Soler-Lopez. Structural basis of bioenergetic protein complexes in Alzheimer’s disease pathogenesis. Cur Opin Struct Biol. 2023\, 80:102573 \n[3] Giachin et al. Assembly of The Mitochondrial Complex I Assembly Complex Suggests a Regulatory Role for Deflavination. Angew. Chem. Int. Ed. 2021\, 60(9):4689 \n[4] McGregor et al. The assembly of the Mitochondrial Complex I Assembly complex uncovers a redox pathway coordination. Nat Commun. 2023\, 14(1):8248 \nContact : deborah.verger@grenoble-inp.fr
URL:https://sfp-alpes.fr/event/montserrat-soler-lopez-5macromolecular-x-ray-crystallography-imaging-and-scattering-group-esrf/
LOCATION:LMGP – salle des séminaires\, Grenoble INP -Phelma 3 parvis Louis Néel\, Grenoble\, 38054\, France
CATEGORIES:Séminaire
ORGANIZER;CN="LMGP":MAILTO:deborah.verger@grenoble-inp.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260319T140000
DTEND;TZID=Europe/Paris:20260319T150000
DTSTAMP:20260404T100934
CREATED:20260227T145207Z
LAST-MODIFIED:20260227T145253Z
UID:10000086-1773928800-1773932400@sfp-alpes.fr
SUMMARY:Rebeca RIBEIRO (C2N\, Paris-Saclay)
DESCRIPTION:Twist-Angle-Controlled Anomalous Gating in Bilayer Graphene/BN Heterostructures\nRésumé : \nAnomalous gating effects—such as gate ineffectiveness and pronounced hysteresis—have been observed in graphene-based systems encapsulated in boron nitride (BN) and linked to a possible ferroelectric state. However\, their origin\, stability\, and reproducibility remain under debate. During this talk\, I will present charge transport experiments in dual-gated\, dynamically rotatable van der Waals heterostructures based on bilayer graphene encapsulated in BN. Remarkably\, the angular degree of freedom acts as an ON/OFF switch for the anomalous gating response. We show that the angular alignment between the two BN layers is the key parameter governing these effects. Both gate ineffectiveness and hysteresis are highly sensitive to small angular changes\, and they clearly change in behavior\, which we classify into three distinct regimes. \nContact : florence.levy-bertrand@neel.cnrs.fr
URL:https://sfp-alpes.fr/event/rebeca-ribeiro-c2n-paris-saclay/
LOCATION:CNRS – Salle Rémy Lemaire (K223)\, CNRS - Institut Néel 25 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260319T140000
DTEND;TZID=Europe/Paris:20260319T150000
DTSTAMP:20260404T100934
CREATED:20260305T151014Z
LAST-MODIFIED:20260305T151747Z
UID:10000094-1773928800-1773932400@sfp-alpes.fr
SUMMARY:Matthieu RAYNAL (Sorbonne Université\, CNRS\, Institut Parisien de Chimie Moléculaire (IPCM))
DESCRIPTION:Supramolecular helical catalysts : chirality induction and beyond\nRésumé : \nHelices are commonly formed by symmetry breaking operating during the bottom-up assembly of small molecules or monomers and their sense of rotation can be controlled by various methods. Important progress has been made in controlling the chiral and structural properties of supramolecular discrete assemblies and polymers.[1] Benzene-1\,3\,5- tricarboxamide[2] (BTA) are ubiquitous synthons for the preparation of hydrogen-bonded helices but it remains to be demonstrated how a given macroscopic property\, notably related to chirality (e.g. chiroptical\, magnetic\, catalytic)\, can be affected by tuning the structure of these supramolecular polymers or copolymers. We demonstrated that the supramolecular chirality of BTA assemblies can be transferred to intrinsically achiral metal centres (Rh\, Cu) located at their periphery.[3] How the selectivity of a catalytic reaction of reference can be affected by the nature of the monomers\, the presence of metal centres\, and the addition of achiral additives will be particularly discussed.[4] Not only a fine tuning of the chirality of the supramolecular assemblies but also a proper control of their dynamicity is key to address important challenges. We recently disclose the possibility to select one major (70%-79%) amongst four possible stereoisomers of an amino alcohol by applying the supramolecular helical catalyst in either concomitant (with no inversion of catalyst handedness) or sequential (with inversion of catalyst handedness) hydrosilylation and hydroamination reactions [5]. \nReferences : \n[1] Yashima E. et al. Chem. Rev.\, 2016\, 116\, 13752.\n[2] Cantekin S. et al. Chem. Soc. Rev.\, 2012\, 41\, 6125.\n[3] Desmarchelier A. et al. J. Am. Chem. Soc.\, 2016\, 138\, 4908.\n[4] (a) Li Y. et al. J. Am. Chem Soc.\, 2020\, 142\, 5676. (b) Martínez-Aguirre M. A. et al. Angew. Chem. Int. Ed.\, 2021\, 60\, 4183. (c) Hammoud A. et al. Chem. Eur. J.\, 2023\, e202300189. (d) Kong H. et al. ChemistryEurope\, 2023\, 1\, e202300027.\n[5] Chen\, R. et al. Nature Commun.\, 2024\, 15\, 4116 \n_ \nContact : adrien.quintard@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/matthieu-raynal-sorbonne-universite-cnrs-institut-parisien-de-chimie-moleculaire-ipcm/
LOCATION:DCM – Salle C209\, DCM - Bât Chimie Recherche 301 rue de la Chimie\, St Martin d'Hères\, 38400\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260320T110000
DTEND;TZID=Europe/Paris:20260320T120000
DTSTAMP:20260404T100934
CREATED:20260227T100104Z
LAST-MODIFIED:20260313T171306Z
UID:10000079-1774004400-1774008000@sfp-alpes.fr
SUMMARY:Chrystel GENOUD (EPFL\, Lausane\, Suisse)
DESCRIPTION:Understanding tissue by volumeEM – some examples from an EM platform\nSéminaire dans le cadre de la Journée Microscopie Electronique \nRésumé : \nUnderstanding the complex architecture of cells and tissues requires imaging technologies that can bridge the gap between ultrastructural details and large-volume context in room temperature and cryo-EM. Volume electron microscopy (volume EM) addresses this need by enabling 3D imaging of biological samples at nanometer resolution over tens to hundreds of microns. In this presentation\, I will provide an overview of volume EM techniques available on our platform based on examples and how we combine it with correlative light and electron microscopy.I will also show how we are adressing the targeting of small structures in lare tissue in cryo-ET by using the serial lift-out method and cryo-CLEM. The example of targeting the Casparian strip in the root of Arabidopsis thaliana will be developed. \nContact : ibs.seminaires@ibs
URL:https://sfp-alpes.fr/event/chrystel-genoud-epfl-lausane-suisse/
LOCATION:IBS – Salle des séminaires\, IBS 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
ORGANIZER;CN="IBS":MAILTO:ibs.seminaires@ibs
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260320T123000
DTEND;TZID=Europe/Paris:20260320T131500
DTSTAMP:20260404T100934
CREATED:20260213T092546Z
LAST-MODIFIED:20260227T153942Z
UID:10000065-1774009800-1774012500@sfp-alpes.fr
SUMMARY:Pascal BOUSSEMART (Expert IA Générative (Orange Recherche Grenoble))
DESCRIPTION:L’IA au coeur du travail\nRésumé : \nOn parle beaucoup d’intelligence artificielle dans l’entreprise. Trop souvent comme d’un outil. Parfois comme d’une menace. Rarement comme d’un déplacement profond du rôle de l’employé\, du manager et de l’organisation elle‑même. \nÀ partir d’exemples concrets vécus (interaction réelle avec une IA\, arbitrages humains\, conflits de sens\, décisions managériales)\, la conférence explore : l’impact de l’IA sur le métier\, l’autonomie\, la responsabilité et la reconnaissance et aussi comment l’entreprise doit se reconfigurer. \nIl ne s’agit pas de dire si l’IA est « bonne » ou « mauvaise ». Il s’agit de comprendre ce que devient l’employé quand penser\, décider\, écrire\, analyser ne lui appartiennent plus totalement.  \nUne conférence pour dirigeants\, managers\, chercheurs et salariés qui refusent les discours simplistes\, et veulent explorer ce choc discret mais radical qui est en cours dans le monde du travail. \nÀ propos des intervenants : \nPascal BOUSSEMART est expert en Intelligence Artificielle Générative et Formateur en Prompt Engineering chez Orange Recherche Grenoble. \nIngénieur diplômé Mines-Telecom\, il cumule plus de 30 ans d’expérience dans l’innovation technologique. Véritable pionnier de l’IA générative\, Pascal est l’auteur de plusieurs brevets dans ce domaine très innovant et il a participé au dépôt des projets coopératifs de recherche européens dont le dernier en 2025 sur l’impact des IA en entreprise. Il est également le créateur et animateur du\n« Papotage IA Gen » chez Orange\, un espace hebdomadaire dédié au partage et à la veille sur les usages de ces technologies. \nContact : giant.campus@cea.fr
URL:https://sfp-alpes.fr/event/pascal-boussemart-expert-ia-generative-orange-recherche-grenoble/
LOCATION:Amphi Minatec\, 3 parvis Louis Néel\, Grenoble\, 38054\, France
CATEGORIES:Séminaire
ORGANIZER;CN="GIANT":MAILTO:giant.campus@cea.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260320T133000
DTEND;TZID=Europe/Paris:20260320T143000
DTSTAMP:20260404T100934
CREATED:20260226T162747Z
LAST-MODIFIED:20260305T154053Z
UID:10000073-1774013400-1774017000@sfp-alpes.fr
SUMMARY:ATTENTION !!! Séminaire reporté. Initialement prévu le 30 mars  !!! - Bjoern WEHINGER (ESRF)
DESCRIPTION:Neutron and x-rays scattering on quantum magnets at high pressures and low temperatures\nRésumé : \nApplication of external pressure acts as clean tuning parameter of inter-atomic distances and bond angles and therefor allows for precise control of magnetic interactions in condensed matter. Extreme conditions can thus be used to stabilize novel quantum phases and drive systems close to quantum criticality where new and exciting phenomena are expected. Within this seminar I will show how recent advances in neutron and x-ray scattering allows to access fingerprints of quantum correlations and present novel results on quantum magnets at the extreme. \n_ \nArno Hiezz (College 4 Secretary) \nExternal visitors may ask for a site access to tellier(at)ill.fr \n 
URL:https://sfp-alpes.fr/event/bjoern-wehinger-esrf/
LOCATION:ILL – Salle de Séminaire (110-111)\, ILL 50 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260323T110000
DTEND;TZID=Europe/Paris:20260323T120000
DTSTAMP:20260404T100934
CREATED:20260320T094540Z
LAST-MODIFIED:20260320T094546Z
UID:10000101-1774263600-1774267200@sfp-alpes.fr
SUMMARY:Chloé ROFFAY (IMP Vienna\, Austria)
DESCRIPTION:Uncovering the forces driving the fate and shape of the extraembryonic amnion during human gastrulation\nRésumé : \nExtraembryonic tissues provide key molecular signals and mechanical support to the growing embryo. For instance\, the extraembryonic amnion\, which forms a fluid-filled sac surrounding the embryo\, was recently shown to trigger germ layer specification during gastrulation\, by secreting BMP ligands. Despite the key roles of extraembryonic tissues in embryo development\, little is still known regarding their molecular and biophysical programs\, particularly in human. Using a 2D stem cell-based model of human gastrulation\, termed gastruloid discs\, we found that amnion cells undergo a sharp columnar-to-squamous transition concomitantly with fate specification. Via biophysical modelling\, direct force measurements\, pharmacological and genetic perturbations\, we showed that this morphogenetic transition is amnion-intrinsic and it is driven by active wetting\, i.e. a transition from tensile to adhesion-dominated cellular states. Molecularly\, active wetting is implemented via a rewiring of cytoskeleton composition\, from actomyosin to keratin-based cytoskeletal networks\, akin to a bistable toggle-switch in gene regulatory networks. Strikingly\, blocking shape changes at the colony edge results both in defective cellular states in the amnion and impaired gastruloid disc morphogenesis within the embryonic compartment. Together\, our findings establish that a cytoskeletal toggle switch couples fate specification to tissue architecture in the human amnion and suggest an unexpectedly active mechanical role for extraembryonic tissues in shaping the embryo proper. \nContact : thomas.boudou@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/chloe-roffay-imp-vienna-austria/
LOCATION:LiPhy – Salle de conférence\, LiPhy 140 avenue de la Physique\, St Martin d'Hères\, 38402\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260323T140000
DTEND;TZID=Europe/Paris:20260323T150000
DTSTAMP:20260404T100934
CREATED:20260306T161739Z
LAST-MODIFIED:20260306T162442Z
UID:10000098-1774274400-1774278000@sfp-alpes.fr
SUMMARY:Stéphanie ROCCIA (LPSC-CNRS/UGA\, GRENOBLE)
DESCRIPTION:The search for neutron electric dipole moment at PSI\nRésumé : \nThe Universe and its history are simultaneously very well understood and still a big mystery. We have amazing tools from satellites to\nobservatories to weight the universe over its history. But the components of the Universe can simply not yet be explained by physicists. To get the full picture\, we need to identify and understand the interactions at play throughout the life of the Universe. This is the meeting point between particle physics and cosmology. At this meeting point stands the neutron\, a common particle that we can uniquely use in high precision experiments.\nI will present how experiments searching for a permanent electric dipole moment of the neutron (nEDM) aim at discovering new sources of CP violation beyond the Standard Model of particle physics and understanding the origin of the matter-antimatter asymmetry of the Universe. The quest for the neutron electric dipole moment started more than sixty years ago. In recent experiments\, polarized ultra-cold neutrons are stored in material bottles.\nI will present the ongoing efforts at the Paul Scherrer Institute in Switzerland where the n2EDM spectrometer has taken the first “physics data” in 2025. A large fraction of this dataset is dedicated to measurements of the UCN spectrum. I will present the newest UCN spectroscopy techniques that were recently published and the reasons for the importance of a deep understanding of the UCN spectrum. \n— \nHanno Filter (College 3 Secretary) \nExternal visitors may ask for a site access to tellier(at)ill.fr \nZoom link : https://ill.zoom.us/j/98964195699?pwd=vPhNT17CAeoDUr7QX4PjfyPnWsHuMU.1 – Password : SeminarC3
URL:https://sfp-alpes.fr/event/stephanie-roccia-lpsc-cnrs-uga-grenoble-2/
LOCATION:ILL – Salle de Séminaire (110-111)\, ILL 50 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260326T130000
DTEND;TZID=Europe/Paris:20260326T140000
DTSTAMP:20260404T100934
CREATED:20260213T094059Z
LAST-MODIFIED:20260313T094659Z
UID:10000067-1774530000-1774533600@sfp-alpes.fr
SUMMARY:Martial MARBOUTY (Institut Pasteur – Paris)
DESCRIPTION:Phages with a broad host range are common across ecosystems\nContact : lucie.lamothe@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/martial-marbouty-institut-pasteur-paris/
LOCATION:IMAG – Salle de Réunion\, 150 place du Torrent\, St Martin d’Hères\, 38400\, France
CATEGORIES:Séminaire
ORGANIZER;CN="TIMC - IMAG":MAILTO:lucie.lamothe@univ-grenoble-alpes.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260327T110000
DTEND;TZID=Europe/Paris:20260327T120000
DTSTAMP:20260404T100934
CREATED:20260320T095205Z
LAST-MODIFIED:20260320T095209Z
UID:10000102-1774609200-1774612800@sfp-alpes.fr
SUMMARY:Jacopo DE NARDIS (Cergy Paris University)
DESCRIPTION:Anticoncentration of Wave Functions and Information-Protected Phases in Noisy Quantum Chaotic Systems\nRésumé : \nI will present recent results on noisy quantum chaotic dynamics\, with a particular focus on wave-function anticoncentration—characterized\, for instance\, through bitstrings output distributions—and on Information-protected phases that persist at finite circuit depth. \nContact : serge.florens@neel.cnrs.fr
URL:https://sfp-alpes.fr/event/jacopo-de-nardis-cergy-paris-university/
LOCATION:LPMMC – salle Roger Maynard (G421)\, CNRS - LPMMC 25 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260330T140000
DTEND;TZID=Europe/Paris:20260330T150000
DTSTAMP:20260404T100934
CREATED:20260312T152112Z
LAST-MODIFIED:20260312T152502Z
UID:10000099-1774879200-1774882800@sfp-alpes.fr
SUMMARY:Sander VAN SMAALEN (Laboratory of Crystallography\, Bayerisches Geoinstitut\, University of Bayreuth)
DESCRIPTION:Chiral charge density waves in EuAl4 and related compounds\nRésumé : \nThe BaAl 4 structure type has centrosymmetric\, tetragonal symmetry\, I4/mmm\, with three crystallographically independent atom sites: Ba\, Al1 and Al2. Solid solution series RAl 4-x Gax (R= Eu\, Sr\, Ca\, Ba; 0 < x < 4) crystallize in this structure type [1]\, where Ga preferably occupies the Al2 site. Accordingly\, complete chemical order is found for x = 0\, 2\, 4. Incommensurate charge-density waves (CDWs) have been observed in several of these ordered compounds. For the other values of x\, lack of chemical order leads to suppression of the CDW transition. At much lower temperatures (T = 10–30 K) magnetic order appears for the compounds with magnetic Eu atoms. Here\, we present the crystal structures of the incommensurate CDWs of EuAl 4 \, EuAl 2 Ga2 and SrAl 4 . In particular\, the symmetry of the CDWs is analyzed in view of x-ray diffraction data (present data [2–5])\, and results of transmission electron microscopy (TEM)\, density functional theory (DFT) calculations and inelastic x ray scattering (IXS) from the literature [6–8].\nReferences : \n[1] M. Stavinoha et al.\, Phys. Rev. B 97\, 195146 (2018). Charge density wave behavior and order-disorder in the antiferromagnetic metallic series Eu(Ga1-x Al x )4 .\n[2] S. Ramakrishnan et al.\, IUCrJ 9\, 378–385 (2022). Orthorhombic charge density wave on the tetragonal lattice of EuAl 4 .\n[3] S. R. Kotla et al.\, Phys. Rev. B 112\, 064113 (2025). Broken inversion symmetry in the charge density wave phase in EuAl 4 .\n[4] S. Ramakrishnan et al.\, Phys. Rev. Research 6\, 023277 (2024). Non-centrosymmetric\, transverse structural modulation in SrAl 4 \, and elucidation of its origin in the BaAl 4 family of\ncompounds.\n[5] H. Agarwal et al.\, Phys. Rev. B 111\, 155144 (2025). I-centered versus F-centered orthorhombic symmetry and negative thermal expansion of the charge density wave of EuAl2 Ga2 .\n[6] H. Ni et al.\, Phys. Rev. Mater. 8\, 104414 (2024). Real-space visualization of atomic displacements in a long-wavelength charge density wave using cryogenic 4D-STEM.\n[7] A. N. Korshunov et al.\, Phys. Rev. B 110\, 045102 (2024). Phonon softening and atomic modulations in EuAl 4 .\n[8] F. Z. Yang et al.\, Nature Commun. 16\, 10401 (2025). Incommensurate Transverse Peierls Transition and Signature of Chiral Charge Density Wave in EuAl4 \nContact : andrew.fefferman@neel.cnrs.fr
URL:https://sfp-alpes.fr/event/sander-van-smaalen-laboratory-of-crystallography-bayerisches-geoinstitut-university-of-bayreuth/
LOCATION:CNRS – Salle Louis Weil (E424)\, CNRS - Institut Néel 25 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260331T140000
DTEND;TZID=Europe/Paris:20260331T150000
DTSTAMP:20260404T100934
CREATED:20260227T152048Z
LAST-MODIFIED:20260227T152234Z
UID:10000088-1774965600-1774969200@sfp-alpes.fr
SUMMARY:Simon PONTON (chargé de recherche CNRS - SIMaP)
DESCRIPTION:Development of the combinatorial approach for the CVD thin film deposition process : Multiphysics coupling and machine learning\nRésumé : \nThe combinatorial approach applied to chemical vapor deposition processes integrating high-throughput experiments\, computational simulations\, and machine learning seems to emerge as a transformative paradigm to accelerate the discovery of novel materials. Through systematic gradient explorations\, large-scale datasets can be generated to deepen our understanding of process-structure-property relationships. Machine learning models\, trained on experimental and simulated data enable rapid prediction and identification of high-potential solutions\, thereby guiding future experiments and simulations. The synergy not only reduces the time or cost associated with material discovery but also unlocks access to previously unexplored regions of the materials space. \nShort Bio/CVMy academic journey began in Grenoble\, where I studied chemistry before developing a keen interest in materials sciences\, particularly nanostructures and their processing. Driven by a desire to unravel the underlying mechanisms\, I started my PhD in Toulouse\, between the CIRIMAT and LGC. There\, I expanded my expertise in chemical engineering and Multiphysics simulation. After nearly two years of postdoctoral research\, I sought to broaden my research perspective and joined Polytechnique Montréal in the chemical engineering section for two postdoctoral positions that led to an associate professor role. However\, my longing for French cheese proved irresistible\, I successfully secured a position at CNRS and joined SIMaP in February 2026. \nContact : deborah.verger@grenoble-inp.fr
URL:https://sfp-alpes.fr/event/simon-ponton-charge-de-recherche-cnrs-simap/
LOCATION:LMGP – salle des séminaires\, Grenoble INP -Phelma 3 parvis Louis Néel\, Grenoble\, 38054\, France
CATEGORIES:Séminaire
ORGANIZER;CN="LMGP":MAILTO:deborah.verger@grenoble-inp.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260402T080000
DTEND;TZID=Europe/Paris:20260402T090000
DTSTAMP:20260404T100934
CREATED:20260130T143757Z
LAST-MODIFIED:20260130T143757Z
UID:10000046-1775116800-1775120400@sfp-alpes.fr
SUMMARY:Olivier CHABRE (endocrinologie)
DESCRIPTION:Carence iodée et hypothyroïdie congénitale : situation actuelle dans les Alpes et au-delà\nContact : sante-communication@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/olivier-chabre-endocrinologie/
LOCATION:CHU – Salle Gilbert Faure\, CHU Grenoble Alpes Pavillon Vercors (côté Belledonne)\, La Tronche\, 38043\, France
CATEGORIES:Séminaire
ORGANIZER;CN="CHU Grenoble":MAILTO:sante-communication@univ-grenoble-alpes.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260402T103000
DTEND;TZID=Europe/Paris:20260402T113000
DTSTAMP:20260404T100934
CREATED:20260320T100322Z
LAST-MODIFIED:20260320T100733Z
UID:10000103-1775125800-1775129400@sfp-alpes.fr
SUMMARY:Karine PHILIPPOT (Laboratoire de Chimie de Coordination du CNRS (LCC-CNRS)\, Toulouse\, France)
DESCRIPTION:Design of nanocatalysts following molecular chemistry principles\nRésumé : \nDue to their singular properties and potential applications in various fields\, considerable effort is being devoted to the design of metal-based nanomaterials. The « Metal Nanoparticle Engineering » team at LCC-CNRS (Toulouse\, France) has developed an effective toolkit for the synthesis of controlled metal nanoparticles using concepts from molecular chemistry. This approach is based on the hydrogenation of organometallic or metallo-organic complexes under mild conditions (ambient temperature; 3 bar H2) in the presence of ligands as stabilising agents. (1) This approach makes it possible to obtain small nanoparticles (<10 nm) with controlled composition\, either monometallic or bimetallic (alloy\, core-shell\, surface-decorated). These nanoparticles can be deposited on a support by simple impregnation or by direct synthesis in the presence of the chosen support (polymers\, ionic liquids\, silica\, alumina\, carbonaceous materials\, etc.). These metal nanoparticle systems are suitable models for fundamental research. They find applications in various fields such as catalysis. (2\,3) Non exhaustive examples concern biomass valorization (4)\, hydrogenation catalysis (4-6) including reduction of CO2\, (7) or electrocatalytic (8-11) or photocatalytic (12-13) water splitting process. \nReferences : \n1 C. Amiens\, D. Ciuculescu-Pradines\, K. Philippot\, Coord. Chem. Rev.\, 2016\, 38\, 409-432.\n2 M. R. Axet\, K. Philippot\, Chem. Rev 2020\, Chem. Rev. 2020\, 120\, 2\, 1085-1145.\n3 Nanoparticles in Catalysis: Advances in Synthesis and Applications\, Wiley-VCH\, K. Philippot & A. Roucoux (Eds.)\, 2021.\n4 M. Cardona\, P. Lecante\, C. Dinoi\, I. del Rosal\, R. Poteau\, K. Philippot\, M. Rosa Axet\, Green Chemistry\, 2021\, 23\, 8480-8500.\n5 C. J Abou-Fayssal\, C. Fliedel\, R. Poli\, A. Riisager\, K. Philippot\, E. Manoury\, Materials Today Chemistry\, 2023\, 34\, 101752 (https://doi.org/10.1016/j.mtchem.2023.101752).\n6 D. Krishnan\, L. Schill\, M. R. Axet\, K. Philippot\, A. Riisager\, ChemCatChem 2024\,16(4) : e20230144.\n7 X.-P. Fu\, L. Peres\, J. Esvan\, C. Amiens\, K. Philippot\, N. Yan\, Nanoscale\, 2021\, 13\, 8931-8939.\n8 J. Creus\, S. Drouet\, S. Suriñach\, P. Lecante\, V. Collière\, R. Poteau\, K. Philippot\, J.García-Antón\, X. Sala\, ACS Catalysis.\, 2018\, 8\, 11094-11102.\n9 L. Mallón\, J. Navarro-Ruiz\, C. Cerezo-Navarrete\, N. Romero\, I. del Rosal\, J. García-Antón\, R. Bofill\, L. M. Martínez-Prieto\, K. Philippot\, R. Poteau\, X. Sala\, ACS Applied Materials &\nInterfaces 2025\, 17(4)\, 6198-6210.\n10 Nanoscale NiCu electrocatalyst for the hydrogen evolution reaction\, T. Straistari\, N. Romero\, J. Esvan\, M. Gil Sepulcre\, C. Amiens\, O. Rüdiger\, S. Debeer\, S. Cavaliere\, K. Philippot\, Nanoscale 2025\, 17\, 17592-17603.\n11 Regulating NiFeOOH oxidation states through ruthenium incorporation\, L. Mallón\,1\, L. Peres\, N. Rivas\, A. Garzón Manjón\, C. Scheu\, M. Gil-Sepulcre\, O. Rüdiger\, S. DeBeer\, N. Romero\, J.\nEsvan\, J. García-Antón\, L. Rodríguez-Santiago\, X. Solans-Monfort\, R. Bofill\, K. Philippot\, L. Francàs\, X. Sala\, J. Mater. Chem. A\, 2026\, in press.\n12 N. Romero\, F. Sabuzi\, M. Forchetta\, M. Natali\, R. Signorini\, R. Bofill\, L. Francàs\, M. Gil-Sepulcre\, O. Rüdiger\, S. DeBeer\, J. García-Antón\, K. Philippot\, P. Galloni\, A. Sartorel\, X. Sala\, Green Chemistry 2025\, 27\, 4352-4368.\n13 Dyadic Ru-based Nanomaterials for Visible Light-driven Photocatalytic Hydrogen Evolution\, G. Martí\, M. Aliqué\, I. López\, L. Francàs\, R. Bofill\, O. Schott\, G. S. Hanan\, N. Romero\, K. Philippot\, A. Llobet\, M. Natali\, J. García-Antón\, X. Sala\, Applied Surface Science\, 2026\, 716\, 164621 \nContact : carole.duboc@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/karine-philippot-laboratoire-de-chimie-de-coordination-du-cnrs-lcc-cnrs-toulouse-france/
LOCATION:DCM – Salle C209\, DCM - Bât Chimie Recherche 301 rue de la Chimie\, St Martin d'Hères\, 38400\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260402T160000
DTEND;TZID=Europe/Paris:20260402T183000
DTSTAMP:20260404T100934
CREATED:20260206T152029Z
LAST-MODIFIED:20260206T152359Z
UID:10000057-1775145600-1775154600@sfp-alpes.fr
SUMMARY:Carole ESCARTIN (directrice de recherche à NeuroPSI\, CNRS\, Université Paris-Saclay)
DESCRIPTION:Les cellules gliales dans les maladies neurodégénératives : rôles émergents et potentiel thérapeutique\nRésumé : \nLes neurones ne sont pas seuls dans le cerveau. A leur côté\, plusieurs types de cellules\, collectivement appelées « cellules gliales »\, remplissent de nombreux rôles essentiels pour le bon fonctionnement et la survie des neurones. Ces cellules leur apportent des substrats énergétiques\, assurent la défense contre des pathogènes\, éliminent certains déchets cellulaires\, et même régulent la façon dont les neurones transmettent et traitent l’information nerveuse. \nAu final\, les cellules gliales qui restent souvent dans l’ombre des neurones\, sont des partenaires actifs permettant au cerveau de fonctionner\, mais aussi d’apprendre et de s’adapter. \nDepuis plusieurs années\, les chercheurs découvrent que ces cellules jouent aussi un rôle important dans de nombreuses maladies qui touchent le cerveau. En effet\, ces cellules se transforment en contexte pathologique\, elles sont dites « réactives ». Ces changements peuvent avoir des conséquences majeures – positives ou négatives – sur les neurones et leur survie. \nLes cellules gliales sont l’objet d’études variées pour comprendre leurs rôles dans le cerveau sain et pathologique\, ouvrant des nouvelles pistes thérapeutiques pour de nombreuses maladies cérébrales. \n_ \nToutes les informations sont disponibles sur : https://indico.ijclab.in2p3.fr/event/12390/ \nContact : louis.fayard@IJCLAB.INP3.FR \n 
URL:https://sfp-alpes.fr/event/carole-escartin-directrice-de-recherche-a-neuropsi-cnrs-universite-paris-saclay/
LOCATION:Laboratoire IJCLab – Auditorium Pierre Lehmann\, Rue Ampère\, Orsay cedex\, 91898\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260403T110000
DTEND;TZID=Europe/Paris:20260403T120000
DTSTAMP:20260404T100934
CREATED:20260402T145658Z
LAST-MODIFIED:20260402T145805Z
UID:10000115-1775214000-1775217600@sfp-alpes.fr
SUMMARY:Juan FONTECILLA-CAMPS (IBS/Groupe Métalloprotéines)
DESCRIPTION:Origin and evolution of the eukaryotic cell : the emergence of cooperation\, competition and altruisme\nRésumé : \n\nThe evolutionary transition from prokaryotes to eukaryotes most likely involved the fusion of an archeon with a bacterium. One important consequence of this fusion was an increase in mean gene length in protists to about 1500 nucleotides\, and corresponding 500 amino acids-long proteins. The subsequent evolution of plants and metazoans resulted in a lengthening of their genes (to over 10\,000 nucleotides per gene in vertebrates). However\, the coded proteins remained at an average length of also about 500 amino acids. The significance of the difference in gene length but constant protein size has been the subject of some controversy.\nA second result of the evolutionary transition from prokaryotes to eukaryotes was the emergence of competition\, cooperation and even altruism\, between cells. These interactions cover a large spectrum going from single-cell organisms to mammals like us. Indeed\, recent studies have shown that cancer cells do collaborate during tumor growth.​\n\nThese two subjects will be discussed during the seminar.​​​\n\n\n—\n\n\nLes séminaires et soutenances sont ouverts à tous\, notez toutefois que l’accès au campus EPN nécessite un avis de rendez-vous. Merci de remplir ce formulaire  et de l’adresser\, plus de 48h à l’avance\, à ce contact. Pensez à vous munir d’une pièce d’identité le jour de votre visite.
URL:https://sfp-alpes.fr/event/juan-fontecilla-camps-ibs-groupe-metalloproteines/
LOCATION:IBS – Salle des séminaires\, IBS 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
ORGANIZER;CN="IBS":MAILTO:ibs.seminaires@ibs
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260407T110000
DTEND;TZID=Europe/Paris:20260407T120000
DTSTAMP:20260404T100934
CREATED:20260320T150306Z
LAST-MODIFIED:20260320T150310Z
UID:10000105-1775559600-1775563200@sfp-alpes.fr
SUMMARY:Rajeesh KUMAR N  (Research Associate\, Experimental Physics IV – Solid State Physics\, Ruhr-Universität Bochum\, Germany)
DESCRIPTION:Magnetism and spin dynamics of a weakly interacting rare-earth stretched diamond lattice\nRésumé : \nIn condensed matter physics\, a quantum-disordered ground state is characterized by the absence of long-range order down to absolute zero temperature\, where the disorder is driven by quantum fluctuations that persist even at T=0. On the other hand\, the magnetism of rare-earth materials is particularly intriguing as it originates from their localized 4f electrons\, which exhibit strong spin–orbit coupling\, pronounced magnetic anisotropy\, and relatively weak exchange interactions between magnetic ions. These unique characteristics\, when combined with suitable lattice geometry\, can give rise to a wide variety of unconventional magnetic ground states. \nA diamond magnetic lattice is a bipartite network and in its ideal form\, does not exhibit geometric frustration. However\, “stretched” diamond lattices have recently gained attention where frustration can emerge due to competition between nearest-neighbor (J1) and next-nearest-neighbor (J2) exchange interactions\, despite preserving the bipartite nature. In this context\, we investigate the magnetic ground state of the rare-earth molybdate compound Na5Yb(MoO4)4\, which crystallizes in a stretched diamond magnetic lattice. This compound can be viewed as a complex derivative of the conventional scheelite- type ABO4 structure\, crystallizing in the tetragonal space group I41/a. The magnetic lattice in Na5Yb(MoO4)4 is highly unusual\, featuring a remarkably large nearest-neighbor Yb–Yb separation of approximately 6.3 Å\, in contrast to previously studied stretched-diamond systems where the J1 distance typically lies in the range of 3–5 Å and is predominantly governed by superexchange interactions. Furthermore\, the next-nearest-neighbor (J2) Yb–Yb distance exceeds 9 Å\, significantly weakening the J2 exchange interactions. As a result\, magnetic frustration arising from competing J1–J2 exchange is significantly suppressed in Na5Yb(MoO4)4\, distinguishing it from other frustrated diamond-lattice systems. \nWe employ neutron and synchrotron X-ray diffraction to elucidate the structural details of Na5Yb(MoO4)4. The magnetic properties and ground state are investigated using bulk magnetic susceptibility measurements\, specific heat studies\, and muon spin relaxation (μSR) experiments. In addition\, density functional theory calculations within the DFT+U framework are used to provide theoretical support for the experimental findings. Our results establish Na5Yb(MoO4)4 as a rare example of a dipolar quantum paramagnet in which single-ion physics and long-range dipolar interactions dominate\, while exchange interactions are suppressed to the millikelvin energy scale. \nReference \n1. N. D. Kelly et al.\, Physical Review Materials 6\, 044410 (2022).\n2. A. Chauhan et al.\, Physical Review B 108\, 134424 (2023).\n3. J. Kumar et al.\, Physical Review B 111\, 014411 (2025).\n4. T. Arh et al.\, Nat. Mater. 21\, 416 (2022). \n  \nCollege 5B Secretary \nAlberto Rodriguez Velamazan \nExternal visitors may ask for a site access to Brigitte Dubouloz (dubouloz@ill.fr)
URL:https://sfp-alpes.fr/event/rajeesh-kumar-n-research-associate-experimental-physics-iv-solid-state-physics-ruhr-universitat-bochum-germany/
LOCATION:ILL – Salle de Séminaire (110-111)\, ILL 50 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260408T140000
DTEND;TZID=Europe/Paris:20260408T150000
DTSTAMP:20260404T100934
CREATED:20260320T150834Z
LAST-MODIFIED:20260320T151400Z
UID:10000106-1775656800-1775660400@sfp-alpes.fr
SUMMARY:Javier CAMPO (Aragón Nanoscience and Materials Institute (CSIC - Universidad de Zaragoza)  Zaragoza\, Spain)
DESCRIPTION:A new magnetic state\, “B-Phase”\, found in MnSi at Low Temperatures \nRésumé : \nIn cubic chiral magnets\, Dzyaloshinskii-Moriya (DM) interactions within the chiral crystal structure result in diverse magnetic textures\, including skyrmion lattices (SkL) and chiral soliton lattices\, which hold promise for spintronic and magnonic devices. Among these\, MnSi has been extensively studied due to the SkL formation in the so-called “A-phase” just below Tc [1].  Recently\, it was suggested theoretically that at low temperatures (T)\, the conical helimagnetic (CH) and forced-ferromagnetic (FFM) phases in MnSi might not be directly connected but separated by another SkL phase\, possibly metastable\, or a new phase of unknown nature near the critical magnetic field (Bc) [2]. The theoretical prediction of the new SkL phase at low T is in good agreement with the experiments reported in MnSi and Cu2OSeO3 [3\,4]. On the other hand\, by using careful ac susceptibility measurements at low temperature\, we determined the magnetic phase diagrams of oriented crystals of MnSi [5]. A new unexpected region\, termed “B-phase”\, was observed when the magnetic field was applied along the main diagonal <111>. \nTo clarify the nature of the “B-phase”\, we performed small-angle neutron scattering (SANS) measurements at TAIKAN in J-PARC and transverse field (TF)-μSR experiments at TRIUMF. At low temperatures and fields near Bc\, SANS patterns revealed two peaks along the horizontal axis\, corresponding to the magnetic Bragg peaks of the CH state. Notably\, no diffraction peaks indicative of a six-fold-symmetric SkL were observed. Meanwhile\, μSR results showed a distinct internal magnetic field distribution in the “B-phase”\, different from those in the CH or FFM phases\, suggesting that the “B-phase” could involve a reorientation of Mn helices within the unit cell. \nIn the presentation\, we will discuss these SANS and μSR findings in detail and their implications for understanding the spin texture in the “B-phase”. \nReferences \n\nS. Mühlbauer et al.\, Science 323\, 915 (2009).\nV. Laliena and J. Campo\, Phys. Rev. B 96\, 134420 (2017).\nT. Nakajima et al.\, Sci. Adv. 3\, e1602562 (2017).\nA. Chacon et al.\, Nature Phys 14\, 936–941 (2018).\nM. Ohkuma et al.\, APL Mater. 10\, 041104 (2022).\n\n  \nCollege 5B Secretary \nAlberto Rodriguez Velamazan \nExternal visitors may ask for a site access to Brigitte Dubouloz (dubouloz@ill.fr)
URL:https://sfp-alpes.fr/event/javier-campo-aragon-nanoscience-and-materials-institute-csic-universidad-de-zaragoza-zaragoza-spain/
LOCATION:ILL – Salle de Séminaire (110-111)\, ILL 50 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260409T140000
DTEND;TZID=Europe/Paris:20260409T150000
DTSTAMP:20260404T100934
CREATED:20260320T151906Z
LAST-MODIFIED:20260320T151906Z
UID:10000107-1775743200-1775746800@sfp-alpes.fr
SUMMARY:Gonzalo PEREZ-BLASCO  (Aragón Nanoscience and Materials Institute (CSIC - Universidad de Zaragoza) - Physics Condensed Matter Dept. Zaragoza\, Spain)
DESCRIPTION:Empirical machine learning for 3He spin-filter polarisation decay\nRésumé : \nA lightweight\, empirical machine-learning framework is presented for predicting the time evolution of the nuclear polarisation of 3He spin-filter cells under realistic neutron beam line conditions. The method bridges the gap between detailed microscopic modelling of polarisation relaxation and purely heuristic correction schemes by combining supervised learning with basic physics-informed constraints on spin relaxation. This strategy ensures physically consistent polarisation forecasts while maintaining computational efficiency and ease of implementation. \nThe framework is tailored to the limited number of heterogeneous experimental datasets typically encountered during routine instrument operation. Rather than explicitly modelling all relaxation mechanisms\, it learns an effective representation of polarisation decay directly from experimental data. Within the domain spanned by the training dataset\, the model demonstrates stable predictive performance while preserving the expected exponential relaxation behaviour and accommodating non-linear\, history-dependent effects. \nThe resulting predictions enable reliable\, time-dependent corrections of neutron scattering data affected by polarisation efficiency drift. Compared with traditional single-parameter relaxation models\, the approach accounts for the combined influence of multiple experimental parameters and their temporal evolution. Although extrapolation beyond the training domain requires careful validation\, the method provides an operationally efficient and reproducible tool for polarisation monitoring and correction in realistic experimental environments. \n  \nCollege 6 Secretary \nGabriel Cuello \nExternal visitors may ask for a site access to Brigitte Dubouloz (dubouloz@ill.fr)
URL:https://sfp-alpes.fr/event/gonzalo-perez-blasco-aragon-nanoscience-and-materials-institute-csic-universidad-de-zaragoza-physics-condensed-matter-dept-zaragoza-spain/
LOCATION:ILL – Salle de Séminaire (110-111)\, ILL 50 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260417T140000
DTEND;TZID=Europe/Paris:20260417T150000
DTSTAMP:20260404T100934
CREATED:20260326T143614Z
LAST-MODIFIED:20260326T143621Z
UID:10000112-1776434400-1776438000@sfp-alpes.fr
SUMMARY:Juan Bautista CARDA-CASTELLO (Inorganic and Organic Chemistry Department\, Universitat Jaume I\, Castellón (Spain))
DESCRIPTION:Scientific and Technological Innovations in the Ceramic Industry\nRésumé : \nThe conference “Scientific and Technological Innovations in the Ceramic Industry” will provide a concise overview of recent advances in ceramic materials\, processing technologies\, and new technological opportunities for the ceramic sector. It will examine the technological and economic relevance of the ceramic industry\, together with the key properties that make ceramic materials attractive for advanced uses. Particular attention will be paid to ceramic coating deposition techniques and high-temperature sintering processes\, as well as to processing routes such as laser zone melting or physical vapor deposition (PVD)\, whose application offers new possibilities for the ceramic industry. The lecture will also discuss application fields such as photovoltaics\, catalysis\, and other functional technologies\, which represent expanding areas of interest for the ceramic sector. Overall\, the presentation will show how innovation is broadening the industrial scope of ceramics beyond their traditional uses. \nShort Bio/CV \nJuan Bautista Carda Castelló is a Full Professor of Inorganic Chemistry\, Head of the Solid State Chemistry Research Group and Director of the “Ciutat de Vila-real” Chair of Ceramic Innovation at Universitat Jaume I in Castellón (Spain). With a highly distinguished academic\, scientific\, and institutional career\, he has developed an outstanding record in research\, teaching\, and technology transfer\, with more than 300 scientific publications\, numerous patents\, and extensive participation in national and international research projects. He has supervised more than 35 PhD theses\, promoted collaborations with universities and technological centers worldwide\, and received several major distinctions for his contribution to science and ceramic innovation. His career has made him a leading figure in the fields of solid-state chemistry and ceramic technology. \n— \nContact : deborah.verger@grenoble-inp.fr
URL:https://sfp-alpes.fr/event/juan-bautista-carda-castello-inorganic-and-organic-chemistry-department-universitat-jaume-i-castellon-spain/
LOCATION:LMGP – salle des séminaires\, Grenoble INP -Phelma 3 parvis Louis Néel\, Grenoble\, 38054\, France
CATEGORIES:Séminaire
ORGANIZER;CN="LMGP":MAILTO:deborah.verger@grenoble-inp.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260423T080000
DTEND;TZID=Europe/Paris:20260423T090000
DTSTAMP:20260404T100934
CREATED:20260213T094655Z
LAST-MODIFIED:20260213T094849Z
UID:10000068-1776931200-1776934800@sfp-alpes.fr
SUMMARY:Klaus DIETERICH (génétique)\, Martial MALLARET (neurologue) & Céline BIBOULET BRUNEAU (neuropédiatre) - Service : Centre de référence neuro-musculaire)
DESCRIPTION:Maladies neuromusculaires rares : comment la thérapie génique change la prise en charge de l’amyotrophie spinale\nContact : sante-communication@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/klaus-dieterich-genetique-martial-mallaret-neurologue-celine-biboulet-bruneau-neuropediatre-service-centre-de-reference-neuro-musculaire/
LOCATION:CHU – Salle Gilbert Faure\, CHU Grenoble Alpes Pavillon Vercors (côté Belledonne)\, La Tronche\, 38043\, France
CATEGORIES:Séminaire
ORGANIZER;CN="CHU Grenoble":MAILTO:sante-communication@univ-grenoble-alpes.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260423T130000
DTEND;TZID=Europe/Paris:20260423T140000
DTSTAMP:20260404T100934
CREATED:20260327T093519Z
LAST-MODIFIED:20260327T093524Z
UID:10000114-1776949200-1776952800@sfp-alpes.fr
SUMMARY:Anamaria NESCULEA (LBBE - Lyon)
DESCRIPTION:TITRE A VENIR\nContact : lucie.lamothe@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/anamaria-nesculea-lbbe-lyon/
LOCATION:IMAG – Salle de Réunion\, 150 place du Torrent\, St Martin d’Hères\, 38400\, France
CATEGORIES:Séminaire
ORGANIZER;CN="TIMC - IMAG":MAILTO:lucie.lamothe@univ-grenoble-alpes.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260423T140000
DTEND;TZID=Europe/Paris:20260423T150000
DTSTAMP:20260404T100934
CREATED:20260403T081518Z
LAST-MODIFIED:20260403T081647Z
UID:10000122-1776952800-1776956400@sfp-alpes.fr
SUMMARY:Hermann SUDEROW (Universidad Autonoma de Madrid)
DESCRIPTION:Millikelvin scanning tunneling spectroscopy in heavy fermions\nRésumé : \nSince its invention over 40 years ago\, Scanning Tunneling Microscopy (STM) has provided an unprecedented window into matter at the atomic scale. By measuring tunneling conductance as a function of voltage with atomic precision\, modern millikelvin STM offers a direct method to characterize the ground state of quantum materials with high energy resolution. I will discuss recent millikelvin STM experiments in the heavy fermion unconventional superconductor UTe2. UTe2 has a unique phase diagram\, which is associated to equal spin pairing superconductivity and may potentially host topological modes at the surface. In this system we have identified a novel electron driven surface charge density wave (CDW)[1]. CDWs are often observed in dichalcogenides\, cuprates\, and pnictides\, and arise from features in the lattice that facilitate electronic charge ordering. CDWs are considered to compete with Kondo screening and are relatively rare in heavy fermion metals. I will discuss the exceptional case of UTe2 and show how we identified the primitive wavevectors of the CDW and established the relationship between the surface CDW and the heavy fermion bulk properties. I will also briefly present recent advances and future prospects for STM\, including novel routes to map the Josephson current at atomic scale [2]\, observation of surface superconductivity [3]\, STM in high vectorial magnetic fields [4] and Replica-STM [5]. \n[1] Surface charge density wave in UTe2\, P. García et al\, arXiv:2504.12505\n[2] The feedback driven atomic scale Josephson microscope\, S.D. Escribano et al\, Nat Com 16\, 5842 (2025).\n[3] Robust surface superconductivity and vortex lattice in the Weyl semimetal g-PtBi2\, J. Moreno et al\, Arxiv 2508.04867.\n[4] Scanning Tunneling Microscopy in high vectorial magnetic fields\, J. Rumeu et al\, Rev. Sci. Instrum. 97\, 033705 (2026).\n[5] Bridging atomic and mesoscopic length scales with Replica Scanning Tunneling Microscopy: Visualizing the intra-unit cell pair density modulation of superconducting FeSe at micron length scale\, M. Agueda\, Arxiv 2602.19678. \n_ \nContact : florence.levy-bertrand@neel.cnrs.fr
URL:https://sfp-alpes.fr/event/hermann-suderow-universidad-autonoma-de-madrid/
LOCATION:CNRS – Salle Rémy Lemaire (K223)\, CNRS - Institut Néel 25 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260424T110000
DTEND;TZID=Europe/Paris:20260424T120000
DTSTAMP:20260404T100934
CREATED:20260402T150508Z
LAST-MODIFIED:20260402T150513Z
UID:10000116-1777028400-1777032000@sfp-alpes.fr
SUMMARY:Mikhail ELTSOV (Institut de Génétique et de Biologie Moléculaire et Cellulaire\, Illkirch)
DESCRIPTION:Seeing chromatin in situ : advances and challenges of human and machine vision\nRésumé : \nUsing cryo-electron tomography of vitreous sections\, we directly visualized nucleosomes and linker DNA trajectories in situ within flash frozen Drosophila embryos. Measurements of linker length and curvature revealed an irregular zigzag pattern of chromatin folding characterized by relatively limited linker bending. In favorable orientations\, individual nucleosome particles and their structural variants could be identified without the need for structural averaging. Moreover\, we detected particles containing a variable number of DNA gyres\, ranging from fewer than one to up to three\, resembling previously proposed non-octameric nucleosome-like particles. \nTo place these structural observations in the context of functional chromatin organization\, we are developing computational approaches for nucleosome identification in cellular tomograms. We believe that our approach\, Template Learning\, based on training deep-learning networks on synthetic tomographic data\, can provide a general framework for detecting small macromolecular complexes in crowded cellular environments. \n— \nHôte : Irina Gutsche (IBS/MICA)
URL:https://sfp-alpes.fr/event/mikhail-eltsov-institut-de-genetique-et-de-biologie-moleculaire-et-cellulaire-illkirch/
LOCATION:IBS – Salle des séminaires\, IBS 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
ORGANIZER;CN="IBS":MAILTO:ibs.seminaires@ibs
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260424T123000
DTEND;TZID=Europe/Paris:20260424T131500
DTSTAMP:20260404T100934
CREATED:20260306T093903Z
LAST-MODIFIED:20260402T140219Z
UID:10000096-1777033800-1777036500@sfp-alpes.fr
SUMMARY:Pierre CAPLIER (Directeur adjoint du centre CEA de Grenoble)
DESCRIPTION:70 ans du centre CEA de Grenoble : flashback sur l’histoire du centre et ses évolutions\nRésumé : \nNé dans le sillage de la création du Commissariat à l’énergie atomique en 1945\, le Centre d’études nucléaires de Grenoble (CENG) a vu le jour en 1956 sous l’impulsion de Louis Néel\, avec une vision fondatrice : faire dialoguer recherche fondamentale et technologique\, innovation et industrie au service de la société. \nDepuis sept décennies\, le centre n’a cessé de se transformer. De la recherche nucléaire historique aux défis contemporains du numérique\, de l’énergie\, de la santé\, des matériaux et de l’environnement\, il a su anticiper les mutations scientifiques et technologiques\, tout en restant fidèle à son esprit pionnier et à sa culture de coopération. \nUn voyage dans le temps pour comprendre comment cette aventure scientifique\, profondément ancrée à Grenoble\, contribue à façonner des innovations qui impactent notre quotidien. Parce que comprendre d’où l’on vient\, c’est aussi éclairer ce que nous construisons pour demain. \nÀ propos de l’intervenant \nPierre Caplier est le directeur adjoint du centre CEA de Grenoble depuis 4 ans. Après plusieurs expériences à l’étranger (dans le cadre de la construction du Tunnel sous la Manche) et dans l’industrie en région AuRA (microélectronique et chimie fine)\, il a été recruté au CEA en 2005 pour prendre la responsabilité du Service Facilities du CEA-Leti\, en charge de l’exploitation et des projets dans les salles blanches. Il a ensuite occupé les fonctions d’adjoint opérationnel au chef du département optique et photonique\, toujours au LETI\, puis celles d’adjoint au directeur de l’institut CEA-Irig dépendant de la Direction de la recherche fondamentale\, en charge du soutien à la recherche. \nContact : giant.campus@cea.fr
URL:https://sfp-alpes.fr/event/pierre-caplier-directeur-adjoint-du-centre-cea-de-grenoble/
LOCATION:Amphi Minatec\, 3 parvis Louis Néel\, Grenoble\, 38054\, France
CATEGORIES:Séminaire
ORGANIZER;CN="GIANT":MAILTO:giant.campus@cea.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260428T140000
DTEND;TZID=Europe/Paris:20260428T150000
DTSTAMP:20260404T100934
CREATED:20260326T140308Z
LAST-MODIFIED:20260326T140314Z
UID:10000110-1777384800-1777388400@sfp-alpes.fr
SUMMARY:Elizabeth TILLY (University of New Mexico)
DESCRIPTION:Directional Detection as a Tool for Rare-Event Searches\nRésumé : \nMeasuring the initial scattering angle of a particle track provides powerful discrimination in rare-event searches and can enhance detector characterization. The Migdal effect–characterized by a nuclear recoil and an electron recoil originating from the same vertex–is an inherently directional signal. In this talk\, I will present my work with the Migdal In Galactic Dark mAtter expLoration (MIGDAL) experiment which uses a GEM-based TPC. I will discuss the development of our 3D track reconstruction algorithms and studies exploiting its angular resolution to characterize detector response. I will also discuss measurements of drift properties in negative ion drift gas mixtures\, maximizing noble gas components with the aim of improving spatial resolution for MIGDAL Phase II. Together these demonstrate the power and versatility of precise directional track reconstruction for next-generation rare-event searches. \n— \nHanno Filter (College 3 Secretary) \nExternal visitors may ask for a site access to tellier@ill.fr
URL:https://sfp-alpes.fr/event/elizabeth-tilly-university-of-new-mexico/
LOCATION:ILL – Salle de Séminaire (110-111)\, ILL 50 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
END:VCALENDAR