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Rashba split surface states in BiTeBr
release_bnp2igvsqzb4vljciqflofjvzm
by
S.V. Eremeev,
I.P. Rusinov,
I.A. Nechaev,
E.V. Chulkov
Released
as a article
.
2013
Abstract
Within density functional theory, we study bulk band structure and surface
states of BiTeBr. We consider both ordered and disordered phases which differ
in atomic order in the Te-Br sublattice. On the basis of relativistic ab-initio
calculations, we show that the ordered BiTeBr is energetically preferable as
compared with the disordered one. We demonstrate that both Te- and
Br-terminated surfaces of the ordered BiTeBr hold surface states with a giant
spin-orbit splitting. The Te-terminated surface-state spin splitting has the
Rashba-type behavior with the coupling parameter \alpha_R ~ 2 eV\AA.
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1302.0704v1
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