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Spin Texture in Type-II Weyl Semimetal WTe2

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arxiv 1606.00085 v2 pith:CFTKA2HA submitted 2016-06-01 cond-mat.mtrl-sci

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
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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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classification cond-mat.mtrl-sci
keywords spinwte2fermisemimetalsupporttexturetype-iiweyl
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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.

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