Effects of impurity adsorption on topological surface states of Bi2Te3
SCIE
SCOPUS
- Title
- Effects of impurity adsorption on topological surface states of Bi2Te3
- Authors
- SHIM, JI HOON; KHAQAN, SHATI; M Arshad Farhan; S. Selva Chandrasekaran; Geunsik Lee
- Date Issued
- 2017-10
- Publisher
- EPL ASSOCIATION
- Abstract
- Electronic structures of Bi2Te3 with adsorption of Rb, In, Ga and Au atoms are studied by using the first- principle method, focusing on the effect of non-magnetic impurities on the topologically protected surface states. Upon monolayer formation, the bulk conduction band is moved down to the Fermi level with a significant Rashba splitting due to n-doping behavior with band modification details depending on the adatom chemistry. Our study shows the robustness of the intrinsic spin-momentum coupled surface band and emergence of a new similar one, which could provide helpful insight for developing novel spintronic devices. Copyright (C) EPLA, 2017
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/38986
- DOI
- 10.1209/0295-5075/119/47001
- ISSN
- 0295-5075
- Article Type
- Article
- Citation
- EUROPHYSICS LETTERS, vol. 119, no. 4, page. 47001-p1 - 47001-p5, 2017-10
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