We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Lifshitz Transitions Induced by Temperature and Surface Doping in Type-II Weyl Semimetal Candidate T<sub> d</sub>-WTe<sub>2</sub>.
- Authors
Zhang, Qihang; Liu, Zhongkai; Sun, Yan; Yang, Haifeng; Jiang, Juan; Mo, Sung‐Kwan; Hussain, Zahid; Qian, Xiaofeng; Fu, Liang; Yao, Shuhua; Lu, Minghui; Felser, Claudia; Yan, Binghai; Chen, Yulin; Yang, Lexian
- Abstract
Using high resolution angle-resolved photoemission spectroscopy, we systematically investigate the electronic structure of T d-WTe2, which has attracted substantial research attention due to its diverse and fascinating properties, especially the predicted type-II topological Weyl semimetal (TWS) phase. The observed significant lattice contraction and the fact that our ARPES measurements are well reproduced by our ab initio calculations under reduced lattice constants support the theoretical prediction of a type-II TWS phase in T d-WTe2 at temperatures below 10 K. We also investigate the evolution of the electronic structure of T d-WTe2 and realize two-stage Lifshitz transitions induced by temperature regulation and surface modification, respectively. Our results not only shed light on the understanding of the electronic structure of T d-WTe2, but also provide a promising method to manipulate the electronic structures and physical properties of the type-II TWS T d- XTe2.
- Subjects
LIFSHITZ point (Physics); SEMIMETALS; PHOTOELECTRON spectroscopy; ELECTRONIC structure; CRYSTAL lattices
- Publication
Physica Status Solidi - Rapid Research Letters, 2017, Vol 11, Issue 12, pn/a
- ISSN
1862-6254
- Publication type
Article
- DOI
10.1002/pssr.201700209