Ma, J. Z., He, J. B., Xu, Y. F., Lv, B. Q., Chen, D., Zhu, W. L., Zhang, S., Kong, L. Y., Gao, X., Rong, L. Y., Huang, Y. B., Richard, P., Xi, C. Y., Choi, E. S., Shao, Y., Wang, Y. L., Gao, H. J., Dai, X., Fang, C., ... Ding, H. (2018). Three-component fermions with surface Fermi arcs in tungsten carbide. Nature Physics, 14(4), 349-354. https://doi.org/10.1038/s41567-017-0021-8
Ma, J. Z. ; He, J. B. ; Xu, Y. F. et al. / Three-component fermions with surface Fermi arcs in tungsten carbide. In: Nature Physics. 2018 ; Vol. 14, No. 4. pp. 349-354.
@article{ce8dd174c5be4991b1732b08f647b75b,
title = "Three-component fermions with surface Fermi arcs in tungsten carbide",
abstract = " Topological Dirac and Weyl semimetals not only host quasiparticles analogous to the elementary fermionic particles in high-energy physics, but also have a non-trivial band topology manifested by gapless surface states, which induce exotic surface Fermi arcs 1,2 . Recent advances suggest new types of topological semimetal, in which spatial symmetries protect gapless electronic excitations without high-energy analogues 3-11 . Here, using angle-resolved photoemission spectroscopy, we observe triply degenerate nodal points near the Fermi level of tungsten carbide with space group P 6 m 2 (no. 187), in which the low-energy quasiparticles are described as three-component fermions distinct from Dirac and Weyl fermions. We further observe topological surface states, whose constant-energy contours constitute pairs of 'Fermi arcs' connecting to the surface projections of the triply degenerate nodal points, proving the non-trivial topology of the newly identified semimetal state.",
author = "Ma, {J. Z.} and He, {J. B.} and Xu, {Y. F.} and Lv, {B. Q.} and D. Chen and Zhu, {W. L.} and S. Zhang and Kong, {L. Y.} and X. Gao and Rong, {L. Y.} and Huang, {Y. B.} and P. Richard and Xi, {C. Y.} and Choi, {E. S.} and Y. Shao and Wang, {Y. L.} and Gao, {H. J.} and X. Dai and C. Fang and Weng, {H. M.} and Chen, {G. F.} and T. Qian and H. Ding",
note = "Publisher Copyright: {\textcopyright} 2017 The Author(s).",
year = "2018",
month = apr,
day = "1",
doi = "10.1038/s41567-017-0021-8",
language = "English",
volume = "14",
pages = "349--354",
journal = "Nature Physics",
issn = "1745-2473",
publisher = "Nature Publishing Group",
number = "4",
}
Ma, JZ, He, JB, Xu, YF, Lv, BQ, Chen, D, Zhu, WL, Zhang, S, Kong, LY, Gao, X, Rong, LY, Huang, YB, Richard, P, Xi, CY, Choi, ES, Shao, Y, Wang, YL, Gao, HJ, Dai, X, Fang, C, Weng, HM, Chen, GF, Qian, T & Ding, H 2018, 'Three-component fermions with surface Fermi arcs in tungsten carbide', Nature Physics, vol. 14, no. 4, pp. 349-354. https://doi.org/10.1038/s41567-017-0021-8
Three-component fermions with surface Fermi arcs in tungsten carbide. / Ma, J. Z.; He, J. B.; Xu, Y. F. et al.
In:
Nature Physics, Vol. 14, No. 4, 01.04.2018, p. 349-354.
Research output: Contribution to journal › Article › peer-review
TY - JOUR
T1 - Three-component fermions with surface Fermi arcs in tungsten carbide
AU - Ma, J. Z.
AU - He, J. B.
AU - Xu, Y. F.
AU - Lv, B. Q.
AU - Chen, D.
AU - Zhu, W. L.
AU - Zhang, S.
AU - Kong, L. Y.
AU - Gao, X.
AU - Rong, L. Y.
AU - Huang, Y. B.
AU - Richard, P.
AU - Xi, C. Y.
AU - Choi, E. S.
AU - Shao, Y.
AU - Wang, Y. L.
AU - Gao, H. J.
AU - Dai, X.
AU - Fang, C.
AU - Weng, H. M.
AU - Chen, G. F.
AU - Qian, T.
AU - Ding, H.
N1 - Publisher Copyright:
© 2017 The Author(s).
PY - 2018/4/1
Y1 - 2018/4/1
N2 - Topological Dirac and Weyl semimetals not only host quasiparticles analogous to the elementary fermionic particles in high-energy physics, but also have a non-trivial band topology manifested by gapless surface states, which induce exotic surface Fermi arcs 1,2 . Recent advances suggest new types of topological semimetal, in which spatial symmetries protect gapless electronic excitations without high-energy analogues 3-11 . Here, using angle-resolved photoemission spectroscopy, we observe triply degenerate nodal points near the Fermi level of tungsten carbide with space group P 6 m 2 (no. 187), in which the low-energy quasiparticles are described as three-component fermions distinct from Dirac and Weyl fermions. We further observe topological surface states, whose constant-energy contours constitute pairs of 'Fermi arcs' connecting to the surface projections of the triply degenerate nodal points, proving the non-trivial topology of the newly identified semimetal state.
AB - Topological Dirac and Weyl semimetals not only host quasiparticles analogous to the elementary fermionic particles in high-energy physics, but also have a non-trivial band topology manifested by gapless surface states, which induce exotic surface Fermi arcs 1,2 . Recent advances suggest new types of topological semimetal, in which spatial symmetries protect gapless electronic excitations without high-energy analogues 3-11 . Here, using angle-resolved photoemission spectroscopy, we observe triply degenerate nodal points near the Fermi level of tungsten carbide with space group P 6 m 2 (no. 187), in which the low-energy quasiparticles are described as three-component fermions distinct from Dirac and Weyl fermions. We further observe topological surface states, whose constant-energy contours constitute pairs of 'Fermi arcs' connecting to the surface projections of the triply degenerate nodal points, proving the non-trivial topology of the newly identified semimetal state.
UR - http://www.scopus.com/inward/record.url?scp=85044730175&partnerID=8YFLogxK
U2 - 10.1038/s41567-017-0021-8
DO - 10.1038/s41567-017-0021-8
M3 - Article
AN - SCOPUS:85044730175
SN - 1745-2473
VL - 14
SP - 349
EP - 354
JO - Nature Physics
JF - Nature Physics
IS - 4
ER -
Ma JZ, He JB, Xu YF, Lv BQ, Chen D, Zhu WL et al. Three-component fermions with surface Fermi arcs in tungsten carbide. Nature Physics. 2018 Apr 1;14(4):349-354. doi: 10.1038/s41567-017-0021-8