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Atomic-Scale Visualization of Quasiparticle Interference on a Type-II Weyl Semimetal Surface

Author(s): Zheng, Hao; Bian, Guang; Chang, Guoqing; Lu, Hong; Xu, Su-Yang; et al

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Abstract: We combine quasiparticle interference simulation (theory) and atomic resolution scanning tunneling spectro-microscopy (experiment) to visualize the interference patterns on a type-II Weyl semimetal MoxW1−xTe2 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 Mo0.66W0.34Te2. 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.
Publication Date: Dec-2016
Electronic Publication Date: 23-Dec-2016
Citation: Zheng, Hao, Bian, Guang, Chang, Guoqing, Lu, Hong, Xu, Su-Yang, Wang, Guangqiang, Chang, Tay-Rong, Zhang, Songtian, Belopolski, Ilya, Alidoust, Nasser, Sanchez, Daniel S, Song, Fengqi, Jeng, Horng-Tay, Yao, Nan, Bansil, Arun, Jia, Shuang, Lin, Hsin, Hasan, M. Zahid. (2016). Atomic-Scale Visualization of Quasiparticle Interference on a Type-II Weyl Semimetal Surface. Physical Review Letters, 117 (26), 10.1103/PhysRevLett.117.266804
DOI: doi:10.1103/PhysRevLett.117.266804
ISSN: 0031-9007
EISSN: 1079-7114
Pages: 266804-1 - 266804-6
Type of Material: Journal Article
Journal/Proceeding Title: Physical Review Letters
Version: Author's manuscript



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