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Cited by 952

The DOI matches its Crossref record; 18 of the 18 references it cites were found in a registry or an index.

Discovery of a Weyl fermion state with Fermi arcs in niobium arsenide

Open access
Xu, Su-Yang, Alidoust, Nasser, Belopolski, Ilya, Yuan, Zhujun, Bian, Guang, Chang, Tay-Rong, Zheng, Hao, Strocov, Vladimir N., Sanchez, Daniel S., Chang, Guoqing, Zhang, Chenglong, Mou, Daixiang, Wu, Yun, Huang, Lunan, Lee, Chi-Cheng, Huang, Shin-Ming, Wang, BaoKai, Bansil, Arun, Jeng, Horng-Tay, Neupert, Titus, Kaminski, Adam, Lin, Hsin, Jia, Shuang, Zahid Hasan, M.·2015·Nature Physics
DOI 10.1038/nphys3437
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Abstract

Three types of fermions play a fundamental role in our understanding of nature: Dirac, Majorana and Weyl. Whereas Dirac fermions have been known for decades, the latter two have not been observed as any fundamental particle in high-energy physics, and have emerged as a much-sought-out treasure in condensed matter physics. A Weyl semimetal is a novel crystal whose low-energy electronic excitations behave as Weyl fermions. It has received worldwide interest and is believed to open the next era of condensed matter physics after graphene and three-dimensional topological insulators. However, experimental research has been held back because Weyl semimetals are extremely rare in nature. Here, we present the experimental discovery of the Weyl semimetal state in an inversion-symmetry-breaking single-crystalline solid, niobium arsenide (NbAs). Utilizing the combination of soft X-ray and ultraviolet photoemission spectroscopy, we systematically study both the surface and bulk electronic structure of NbAs. We experimentally observe both the Weyl cones in the bulk and the Fermi arcs on the surface of this system. Our ARPES data, in agreement with our theoretical band structure calculations, identify the Weyl semimetal state in NbAs, which provides a real platform to test the potential of Weyltronics. Experiments show that niobium arsenide is a Weyl semimetal.

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Citations

Cites

Research works printed but not linked: 16

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Metadata

Authors
Xu, S.-Y., Alidoust, N., Belopolski, I., Yuan, Z., Bian, G., Chang, T.-R., Zheng, H., Strocov, V. N., Sanchez, D. S., Chang, G., Zhang, C., Mou, D., Wu, Y., Huang, L., Lee, C.-C., Huang, S.-M., Wang, B., Bansil, A., Jeng, H.-T., Neupert, T., Kaminski, A., Lin, H., Jia, S., & Zahid Hasan, M.
Venue
Nature Physics
Publisher
Springer Science and Business Media LLC
Published
2015-08-17
Volume
11
Issue
9
Pages
748-754
ISSN
  • 1745-2473 (ISSN-L)
  • 1745-2481
DOI
10.1038/nphys3437
OpenAlex
W1946521755
Cited by
952
References
18
FWCI
76.77
Type
journal article
Language
en
Open access
green
Licence

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