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Spin texture in type-II Weyl semimetal WTe 2

2016; American Physical Society; Volume: 94; Issue: 19 Linguagem: Inglês

10.1103/physrevb.94.195134

2469-9977

Baojie Feng, Yang‐Hao Chan, Ya Feng, Ro-Ya Liu, M. Y. Chou, Kenta Kuroda, Koichiro Yaji, Ayumi Harasawa, Paolo Moras, Alexei Barinov, Walid Malaeb, Cédric Bareille, Takeshi Kondo, Shik Shin, Fumio Komori, T.‐C. Chiang, Youguo Shi, Iwao Matsuda,

Electronic and Structural Properties of Oxides

We determine the band structure and spin texture of WTe2 by spin- and angle-resolved photoemission spectroscopy (SARPES). With the support of first-principles calculations, we reveal the existence of spin polarization of both the Fermi arc surface states and bulk Fermi pockets. Our results support WTe2 to be a type-II Weyl semimetal candidate and provide important information to understand its extremely large and nonsaturating magnetoresistance.