January 2013

Journal

Quantum oscillation of Rashba spin splitting in topological insulator Bi2Se3 induced by the quantum size effects of Pb adlayers

By:
Yang, Hong; Peng, X. Y.; Wei, Xiaolin; Liu, Wenliang; Zhu, Wenguang ; Xiao, Di ; Stocks, George M; Zhong, Jianxin
Journal Name:
Physical Review B
Page Number:
155317
Volume:
86
Issue Number:
15
Publication Date:
January 24, 2013
View DOI Listing:
https://doi.org/10.1103/PhysRevB.86.155317

Abstract

Basedonfirst-principlescalculationswithindensityfunctionaltheory,wefindthatPbadlayerscaninduceagiantRashbaspinsplittinginthequantumwellstatesofanunderlyingBi2Se3film.AsthethicknessofthePbadlayersvaries,thedistancebetweenthePbadlayerandtheBi2Se3film,thechargedensityattheinterface,andthebindingbetweenthePbadlayersexhibitanoscillatorybehaviorduetothequantumsizeeffects,whichinturnmodulatesthemagnitudeoftheRashbaspinsplittingofthequantumwellstatesintheBi2Se3film.