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DTSTART;TZID=Europe/Paris:20260507T103000
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DTSTAMP:20260505T133158
CREATED:20260424T082911Z
LAST-MODIFIED:20260424T083058Z
UID:10000130-1778149800-1778153400@sfp-alpes.fr
SUMMARY:Young Keun KIM (Department of Materials Science and Engineering\, Korea University)
DESCRIPTION:3D Chiral Spintronics: Spin-Selective Transport through Chiral Magnetic Nanohelices\nRésumé : \n\n\nChiral crystals with well-defined handedness in atomic arrangements exhibit intriguing properties such as spin selectivity\, asymmetric magnetoresistance\, and skyrmions. Although similar geometry-induced phenomena have been observed in chiral organic-molecule-based systems\, synthesizing uniform inorganic nanostructures with desired chirality using a scalable method remains challenging. We electrochemically synthesized 3D chiral ferromagnetic cobalt-iron nanohelices from nanoparticles in anodized aluminum oxide templates. The spiral directions and the number of strands were regulated by incorporating chiral molecules and applying an appropriate potential. We demonstrate the observation of Faraday’s law of induction at the nanoscale and how chiral nanohelices regulate the direction of electron flow. The implications of our findings extend to the technological realm\, particularly in the context of charity and ferromagnetism-based spin-tunable devices.\nReference :\nY. S. Jeon et al.\, Science 389. 1031-1036 (2025).\n​​\nMore information :https://www.spintec.fr/seminar-3d-chiral-spintronics-spin-selective-transport-through-chiral-magnetic-nanohelices/​​\n​\nVisioconference : https://univ-grenoble-alpes-fr.zoom.us/j/98769867024?pwd=dXNnT3RMeThjYStybGVQSUN0TVdJdz09​​​\n\n\n\n_\nAccès : access to CEA require​s an entry au​thorization. Request it before avril 29​th​ : admin.spintec@cea.fr​
URL:https://sfp-alpes.fr/event/young-keun-kim-department-of-materials-science-and-engineering-korea-university/
LOCATION:CEA – Salle de Séminaire IRIG (1005 – 445)\, Laboratoire Irig/Spintec\, salle de séminaire 445\, bâtiment 1005\, CEA-Grenoble\, Grenoble
CATEGORIES:Séminaire
ORGANIZER;CN="IRIG - CEA":MAILTO:odile.rossignol@cea.fr
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