Souma, S., Wang, Zhiwei ORCID: 0000-0003-0182-2471, Kotaka, H., Sato, T., Nakayama, K., Tanaka, Y., Kimizuka, H., Takahashi, T., Yamauchi, K., Oguchi, T., Segawa, Kouji and Ando, Yoichi ORCID: 0000-0002-3553-3355 (2016). Direct observation of nonequivalent Fermi-arc states of opposite surfaces in the noncentrosymmetric Weyl semimetal NbP. Phys. Rev. B, 93 (16). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9969

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Abstract

We have performed high-resolution angle-resolved photoemission spectroscopy (ARPES) on noncentrosymmetric Weyl semimetal candidate NbP, and determined the electronic states of both Nb- and P-terminated surfaces. We revealed a drastic difference in the Fermi-surface topology between two types of surfaces, whereas the Fermi arcs on both surfaces are likely terminated at the surface projection of the same bulk Weyl nodes. A comparison of the ARPES data with our first-principles band calculations suggests a notable difference in the electronic structure at the Nb-terminated surface between theory and experiment. The present result opens a platform for realizing exotic quantum phenomena arising from the unusual surface properties of Weyl semimetals.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Souma, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wang, ZhiweiUNSPECIFIEDorcid.org/0000-0003-0182-2471UNSPECIFIED
Kotaka, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sato, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nakayama, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tanaka, Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kimizuka, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Takahashi, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Yamauchi, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Oguchi, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Segawa, KoujiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ando, YoichiUNSPECIFIEDorcid.org/0000-0002-3553-3355UNSPECIFIED
URN: urn:nbn:de:hbz:38-278464
DOI: 10.1103/PhysRevB.93.161112
Journal or Publication Title: Phys. Rev. B
Volume: 93
Number: 16
Date: 2016
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 2469-9969
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
TAAS; TRANSITION; DISCOVERY; NEUTRINOS; ABSENCE; LATTICE; PHASE; NODES; PROOFMultiple languages
Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed MatterMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/27846

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