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arxiv: 1603.07318 · v3 · pith:QEIWWJIRnew · submitted 2016-03-23 · ❄️ cond-mat.mes-hall

Discovery of Lorentz-violating Weyl fermion semimetal state in LaAlGe materials

Su-Yang Xu , Nasser Alidoust , Guoqing Chang , Hong Lu , Bahadur Singh , Ilya Belopolski , Daniel Sanchez , Xiao Zhang
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Guang Bian Hao Zheng Marius-Adrian Husanu Yi Bian Shin-Ming Huang Chuang-Han Hsu Tay-Rong Chang Horng-Tay Jeng Arun Bansil Vladimir N. Strocov Hsin Lin Shuang Jia M. Zahid Hasan
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classification ❄️ cond-mat.mes-hall
keywords materialsweyllaalgestatetype-iiclassdiscoveryfermion
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We report theoretical and experimental discovery of Lorentz-violating Weyl fermion semimetal type-II state in the LaAlGe class of materials. Previously type-II Weyl state was predicted in WTe2 materials which remains unrealized in surface experiments. We show theoretically and experimentally that LaAlGe class of materials are the robust platforms for the study of type-II Weyl physics.

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