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Observation of Fermi Arcs in non-Centrosymmetric Weyl Semi-metal Candidate NbP

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 نشر من قبل Difei Xu
 تاريخ النشر 2015
  مجال البحث فيزياء
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We report the surface electronic structure of niobium phosphide NbP single crystal on (001) surface by vacuum ultraviolet angle-resolved photoemission spectroscopy. Combining with our first principle calculations, we identify the existence of the Fermi arcs originated from topological surface states. Furthermore, the surface states exhibit circular dichroism pattern, which may correlate with its non-trivial spin texture. Our results provide critical evidence for the existence of the Weyl Fermions in NbP, which lays the foundation for further investigations.



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