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DTSTART;TZID=Europe/Paris:20260604T140000
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DTSTAMP:20260604T214503
CREATED:20260601T064454Z
LAST-MODIFIED:20260601T090003Z
UID:12285-1780581600-1780585200@fermi.univ-tlse3.fr
SUMMARY:Electric excitation of spin resonance in altermagnetic and  antiferromagnetic conductors. -  ( Revaz Ramazashvili /  LNCMI / Seminar). - 4/06/2026\, 14H
DESCRIPTION:Seminar LNCMI \n Revaz Ramazashvili \,LPT \nSeminar LNCMI\, 4/06/2026\, 14H\,  Lieu : LNCMI\,Toulouse \nAbstract\nWe predict electric-dipole spin resonance (EDSR) in altermagnetic conductors: in a magnetic field H\, perpendicular to the magnetization\naxis\, an AC electric field will induce spin resonance transitions that\, in sufficiently clean samples\, shall be clearly visible on the ohmic\nbackground. The EDSR signal shall have a lower threshold frequency ω_ = 2H and a 1/√(ω-ω_) divergence above this threshold. \nDisorder cuts off this divergence; the resulting height of the threshold resonance peak shall scale as √(Hτ)\, with τ the relaxation time. \nI also hope to discuss how EDSR can serve as a diagnostic of altermagnetic order in conducting materials and as a means to distinguish it from more familiar\,\nhigher-symmetry forms of Néel order. \nLien Zoom : https://univ-grenoble-alpes-fr.zoom.us/j/94228207316?pwd=khTdznxeFy1ZUYkYftQ0QSox6Fz3iK.1
URL:https://fermi.univ-tlse3.fr/event/electric-excitation-of-spin-resonance-in-altermagnetic-and-antiferromagnetic-conductors-revaz-ramazashvili-lncmi-seminar-4-06-2026-14h/
LOCATION:Salle de seminaire du LNCMI\, Champs Magnétiques Pulsés\, 143 avenue de Rangueil\, Toulouse\, France
CATEGORIES:Events,LNCMI,Seminars
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