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SUMMARY:Texture-induced spin-orbit coupling and skyrmion-electron bound st
 ates in a Néel antiferromagnet - Revaz Ramazashvili (Université Toulouse
  III - Paul Sabatier)
DTSTART:20241011T130000Z
DTEND:20241011T143000Z
UID:TALK220081@talks.cam.ac.uk
CONTACT:Bo Peng
DESCRIPTION:We derive an effective-mass electron Hamiltonian for a Néel a
 ntiferromagnet in the presence of a smooth texture of the staggered magnet
 ization. For certain locations of the electron band extrema\, the texture 
 produces a peculiar and anomalously strong spin-orbit coupling of the scal
 e  ħv/L\, with v the Fermi velocity and L the characteristic length scale
  of the texture. For a skyrmion texture\, this coupling generates electron
  bound states\, whose energy scale is given by the gap Δ in the electron 
 spectrum.
LOCATION:TCM Seminar Room
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