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X-ORIGINAL-URL:https://sfp-alpes.fr
X-WR-CALDESC:Évènements pour SFP Alpes
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TZID:Europe/Paris
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DTSTART:20251026T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260206T110000
DTEND;TZID=Europe/Paris:20260206T120000
DTSTAMP:20260130T140553Z
CREATED:20260124T035020Z
LAST-MODIFIED:20260130T140553Z
UID:10000029-1770375600-1770379200@sfp-alpes.fr
SUMMARY:Kei YAMAMOTO (Advanced Science Research Center\, Japan)
DESCRIPTION:Spin-wave spectrum in a ferromagnetic disk\nAbstract : \nAngular momentum transfer in all forms contributes to the loss of information carried by dynamical spin polarisations and constitutes an important fundamental problem in spintronics. In this talk\, we present a detailed microwave spectrum measurement of magnetic excitations in an Yttrium Iron Garnet disk\, and how one can make sense of the multitudes of spectral lines and their magnetic field dependence theoretically. We explain how the axial symmetry of the setup leads to labelling of modes in terms of the conserved total angular momentum of the spin waves\, The frequency spectrum in the saturated state is compared to analytical solutions for pure exchange as well as pure dipolar models under certain limits where different types of spectral degeneracy occur. The experimental result shows splittings of those degenerate modes\, and we discuss possible interpretations in relation to angular momentum transfer between its different forms.\n​​\nMore information :https://www.spintec.fr/seminar-spin-wave-spectrum-in-a-ferromagnetic-disk/​​​\n​\nVisioconference :https://univ-grenoble-alpes-fr.zoom.us/j/98769867024?pwd=dXNnT3RMeThjYStybGVQSUN0TVdJdz09​​
URL:https://sfp-alpes.fr/event/kei-yamamoto-advanced-science-research-center-japan/
LOCATION:CEA – Salle de Séminaire IRIG (1005 – 445)\, 17\, avenue des Martyrs\, Grenoble\, France
CATEGORIES:Séminaire
ORGANIZER;CN="IRIG - CEA":MAILTO:irig.communication@cea.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260209T110000
DTEND;TZID=Europe/Paris:20260209T120000
DTSTAMP:20260130T142114Z
CREATED:20260129T155208Z
LAST-MODIFIED:20260130T142114Z
UID:10000038-1770634800-1770638400@sfp-alpes.fr
SUMMARY:Isidora ARAYA DAY (DIPC San Sebastian)
DESCRIPTION:Diagnosing higher order topological phases with electronic transport\nRésumé : \nUnlike a quantum Hall bar\, a higher-order topological insulator may not have edge modes that conduct\, but localized corner modes. These corner modes are robust to disorder and their appearance is diagnosed by a topological invariant that takes both onsite and spatial symmetries. In this talk\, I will introduce a scattering theory for detecting higher-order topological phases only from a sample’s Fermi level properties\, and will demonstrate how to apply it to different models. This theory provides an alternative approach for proving bulk–edge correspondence in intrinsic higher order topological phases\, especially in presence of disorder\, and it relies on the spectral flow that these phases show in the presence of magnetic flux. \nContact : serge.florens@neel.cnrs.fr
URL:https://sfp-alpes.fr/event/isidora-araya-day-dipc-san-sebastian/
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:20260210T103000
DTEND;TZID=Europe/Paris:20260210T113000
DTSTAMP:20260205T153331Z
CREATED:20260205T153331Z
LAST-MODIFIED:20260205T153331Z
UID:10000051-1770719400-1770723000@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/
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:20260212T130000
DTEND;TZID=Europe/Paris:20260212T140000
DTSTAMP:20260129T135753Z
CREATED:20260124T035658Z
LAST-MODIFIED:20260129T135753Z
UID:10000030-1770901200-1770904800@sfp-alpes.fr
SUMMARY:Delphine ROPERS (Inria – Grenoble)
DESCRIPTION:Computational analyses of bacterial mRNA decay\n  \nPlus d’informations : https://bi-gre.github.io/ \nContact : lucie.lamothe@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/delphine-ropers-inria-grenoble/
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:20260212T140000
DTEND;TZID=Europe/Paris:20260212T150000
DTSTAMP:20260130T102105Z
CREATED:20260130T094628Z
LAST-MODIFIED:20260130T102105Z
UID:10000042-1770904800-1770908400@sfp-alpes.fr
SUMMARY:Youngsuk KIM (Pusan National University\, Busan\, South Korea (visiting scientist @ DCM))
DESCRIPTION:Carbene–CS2 : Redox-active Radical Ligands\nContact : david.martin@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/youngsuk-kim-pusan-national-university-busan-south-korea-visiting-scientist-dcm/
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:20260216T110000
DTEND;TZID=Europe/Paris:20260216T120000
DTSTAMP:20260212T154413Z
CREATED:20260212T154413Z
LAST-MODIFIED:20260212T154413Z
UID:10000058-1771239600-1771243200@sfp-alpes.fr
SUMMARY:Roxane LESTINI & Nicolas OLIVIER (Laboratoire d'Optique et Biosciences\, Palaiseau)
DESCRIPTION:Understanding DNA replication dynamics in the archaea Haloferax volcanii\nRésumé : \nArchaea provide a simplified yet highly informative model for deciphering the complex regulatory networks governing DNA replication and origin firing. Among them\, Haloferax volcanii has a circular chromosome with four active replication origins distributed across a 3.5 Mb DNA molecule and exhibit some distinctive properties\, such as a heterogeneous polyploidy\, carrying 10–18 copies of its genome. \nHow these highly polyploid organisms regulate the activation and timing of their multiple replication origins in coordination with cell growth and division remains an open question. To address this question\, we developed a multiscale approach\, implementing the STORM technique in archaea for the first time\, Marker Frequency Analysis by sequencing (MFA-seq) to capture the global replication profile at the population level\, and fluorescence in situ hybridization (FISH) to explore ploidy variation. \nOur findings reveal\, with an unprecedented resolution of ~30 nm\, new insights into the spatial regulation of replication foci\, demonstrating their organization into clusters. We further investigated DNA replication dynamics under varying growth conditions\, revealing a reduction in replication foci number that correlates with decreased replication rates and DNA content. By contrast\, altering the replication initiation mode—by inactivating all four replication origins—does not disrupt the overall replication dynamics. \nBy integrating these techniques\, we aim to characterize the replication program in H. volcanii and gain a deeper understanding of its regulation. \nContact : delphine.debarre@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/roxane-lestini-nicolas-olivier-laboratoire-doptique-et-biosciences-palaiseau/
LOCATION:LiPhy\, Salle de Conférence\, 140 rue de la Physique\, St Martin d'Hères\, 38400
CATEGORIES:Séminaire
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