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X-ORIGINAL-URL:https://www.lps.u-psud.fr/
X-WR-CALNAME:Laboratoire de physique des Solides
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BEGIN:VEVENT
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DTSTART;TZID=Europe/Paris:20260512T110000
DTEND;TZID=Europe/Paris:20260512T180000
DTSTAMP:20260511T095600
UID:MEC-09779bb7930c8a0a44360e12b538ae3c@lps.u-psud.fr
CREATED:20260511
LAST-MODIFIED:20260511
PRIORITY:5
TRANSP:OPAQUE
SUMMARY:Étienne LANTAGNE-HURTUBISE : Rhombohedral graphene: A tunable platform for unconventional superconductivity and collective modes
DESCRIPTION:\nÉtienne LANTAGNE-HURTUBISE, Département de physique & Institut Quantique, Université de Sherbrooke\n\n\n\nLe résumé :\n\n\n\nRhombohedral graphene multilayers are clean and highly tunable 2D materials that showcase a multitude of symmetry-broken insulating, metallic and superconducting phases at low temperatures. Their rich phase diagram can be modified via proximity to transition metal dichalcogenides such as WSe2, which induce spin-orbit coupling in the graphene layers and lead to a dramatic enhancement of superconductivity.\n\n\n\nI will first present Hartree-Fock phase diagrams for these systems, highlighting a spin-canted magnetic phase consistent with recent nano-SQUID experiments. I will then describe a pairing mechanism based on the low-energy magnon modes associated with spin canting, which could explain spin-orbit-enhanced superconductivity in these systems. Finally, I will show how the valley-polarized superconductors recently reported in rhombohedral tetra- and penta-layer graphene could host exotic superconducting collective modes accessible in linear optical spectroscopy.\n
URL:https://www.lps.u-psud.fr/events/etienne-lantagne-hurtubise-rhombohedral-graphene-a-tunable-platform-for-unconventional-superconductivity-and-collective-modes/
CATEGORIES:Séminaire de la Théorie de la Matière Condensée,Séminaires
LOCATION:Moyen amphi (LPS) + ONLINE (Zoom)
ATTACH;FMTTYPE=image/jpeg:https://www.lps.u-psud.fr/wp-content/uploads/2026/05/lantagne-hurtubise-etienne.jpg
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