| Literature DB >> 28059545 |
Hao Zheng1, Guang Bian1, Guoqing Chang2,3, Hong Lu4, Su-Yang Xu1, Guangqiang Wang4, Tay-Rong Chang5, Songtian Zhang1, Ilya Belopolski1, Nasser Alidoust1, Daniel S Sanchez1, Fengqi Song6, Horng-Tay Jeng5,7, Nan Yao8, Arun Bansil9, Shuang Jia4,10, Hsin Lin2,3, M Zahid Hasan1.
Abstract
We combine quasiparticle interference simulation (theory) and atomic resolution scanning tunneling spectromicroscopy (experiment) to visualize the interference patterns on a type-II Weyl semimetal Mo_{x}W_{1-x}Te_{2} for the first time. Our simulation based on first-principles band topology theoretically reveals the surface electron scattering behavior. We identify the topological Fermi arc states and reveal the scattering properties of the surface states in Mo_{0.66}W_{0.34}Te_{2}. In addition, our result reveals an experimental signature of the topology via the interconnectivity of bulk and surface states, which is essential for understanding the unusual nature of this material.Year: 2016 PMID： 28059545 DOI： 10.1103/PhysRevLett.117.266804
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161