Spin Texture in Type-II Weyl Semimetal WTe2

Baojie Feng; Yang-Hao Chan; Ya Feng; Ro-Ya Liu; Mei-Yin Chou; Kenta Kuroda; Koichiro Yaji; Ayumi Harasawa; Paolo Moras; Alexei Barinov; Walid G. Malaeb; Cedric Bareille; Takeshi Kondo; Shik Shin; Fumio Komori; Tai-Chang Chiang; Youguo Shi; Iwao Matsuda

doi:10.1103/PhysRevB.94.195134

Spin Texture in Type-II Weyl Semimetal WTe2

Materials Science 2016-11-22 v2

Authors: Baojie Feng , Yang-Hao Chan , Ya Feng , Ro-Ya Liu , Mei-Yin Chou , Kenta Kuroda , Koichiro Yaji , Ayumi Harasawa , Paolo Moras , Alexei Barinov , Walid G. Malaeb , Cedric Bareille , Takeshi Kondo , Shik Shin , Fumio Komori , Tai-Chang Chiang , Youguo Shi , Iwao Matsuda

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Abstract

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.

Keywords

weyl semimetals fermi surface spintronics

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@article{arxiv.1606.00085,
  title  = {Spin Texture in Type-II Weyl Semimetal WTe2},
  author = {Baojie Feng and Yang-Hao Chan and Ya Feng and Ro-Ya Liu and Mei-Yin Chou and Kenta Kuroda and Koichiro Yaji and Ayumi Harasawa and Paolo Moras and Alexei Barinov and Walid G. Malaeb and Cedric Bareille and Takeshi Kondo and Shik Shin and Fumio Komori and Tai-Chang Chiang and Youguo Shi and Iwao Matsuda},
  journal= {arXiv preprint arXiv:1606.00085},
  year   = {2016}
}

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Spin Texture in Type-II Weyl Semimetal WTe2

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