TY - JOUR
T1 - Giant Rashba spin splitting in Bi2Se3: Tl
AU - Singh, Nirpendra
AU - Saeed, Yasir
AU - Schwingenschlögl, Udo
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: Research reported in this publication was supported by the King Abdullah University of Science and Technology (KAUST). We thank KAUST research computing for supplying the computational resources for this study. N.S. acknowledges SABIC for financial support.
PY - 2014/7/25
Y1 - 2014/7/25
N2 - First-principles calculations are employed to demonstrate a giant Rashba spin splitting in Bi2Se3:Tl. Biaxial tensile and compressive strain is used to tune the splitting by modifying the potential gradient. The band gap is found to increase under compression and decreases under tension, whereas the dependence of the Rashba spin splitting on the strain is the opposite. Large values of αR = 1.57 eV Å at the bottom of the conduction band (electrons) and αR = 3.34 eV Å at the top of the valence band (holes) are obtained without strain. These values can be further enhanced to αR = 1.83 eV Å and αR = 3.64 eV Å, respectively, by 2% tensile strain. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
AB - First-principles calculations are employed to demonstrate a giant Rashba spin splitting in Bi2Se3:Tl. Biaxial tensile and compressive strain is used to tune the splitting by modifying the potential gradient. The band gap is found to increase under compression and decreases under tension, whereas the dependence of the Rashba spin splitting on the strain is the opposite. Large values of αR = 1.57 eV Å at the bottom of the conduction band (electrons) and αR = 3.34 eV Å at the top of the valence band (holes) are obtained without strain. These values can be further enhanced to αR = 1.83 eV Å and αR = 3.64 eV Å, respectively, by 2% tensile strain. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
UR - http://hdl.handle.net/10754/575605
UR - http://doi.wiley.com/10.1002/pssr.201409183
UR - http://www.scopus.com/inward/record.url?scp=84939266247&partnerID=8YFLogxK
U2 - 10.1002/pssr.201409183
DO - 10.1002/pssr.201409183
M3 - Article
SN - 1862-6254
VL - 8
SP - 849
EP - 852
JO - physica status solidi (RRL) - Rapid Research Letters
JF - physica status solidi (RRL) - Rapid Research Letters
IS - 10
ER -