TY - JOUR
T1 - Orbital-dependent Rashba coupling in bulk BiTeCl and BiTeI
AU - Zhu, Zhiyong
AU - Cheng, Yingchun
AU - Schwingenschlögl, Udo
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2013/2/6
Y1 - 2013/2/6
N2 - By all-electron ab initio calculations, the layered polar semiconductor BiTeCl is shown to host giant bulk Rashba spin splitting, similar to the recently reported compound BiTeI. In both materials, the standard Rashba–Bychkov model is no longer applicable, because of huge band extrema shifts even in the absence of spin–orbit coupling and a strong momentum dependence of the Rashba coupling constant (αR). By assuming αR to be orbital dependent, a phenomenological extension of the Rashba–Bychkov model is proposed which explains the splitting behavior of states with small in-plane momentum.
AB - By all-electron ab initio calculations, the layered polar semiconductor BiTeCl is shown to host giant bulk Rashba spin splitting, similar to the recently reported compound BiTeI. In both materials, the standard Rashba–Bychkov model is no longer applicable, because of huge band extrema shifts even in the absence of spin–orbit coupling and a strong momentum dependence of the Rashba coupling constant (αR). By assuming αR to be orbital dependent, a phenomenological extension of the Rashba–Bychkov model is proposed which explains the splitting behavior of states with small in-plane momentum.
UR - http://hdl.handle.net/10754/554374
UR - http://stacks.iop.org/1367-2630/15/i=2/a=023010?key=crossref.03324e8873219d6f840a3f95787897d4
UR - http://www.scopus.com/inward/record.url?scp=84874527786&partnerID=8YFLogxK
U2 - 10.1088/1367-2630/15/2/023010
DO - 10.1088/1367-2630/15/2/023010
M3 - Article
SN - 1367-2630
VL - 15
SP - 023010
JO - New Journal of Physics
JF - New Journal of Physics
IS - 2
ER -