Observation of Dirac-like band dispersion in LaAgSb2
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2016
Authors
Shi, XunRichard, Pierre
Wang, Kefeng
Liu, Mian
Matt, Christian Egon
Xu, N.
Dhaka, Rajendra S.
Ristić, Zoran
Qian, T.
Yang, Yi-feng
Petrović, Čedomir
Shi, M.
Ding, Hong
Article (Published version)
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We present a combined angle-resolved photoemission spectroscopy (ARPES) and first-principles calculations study of the electronic structure of LaAgSb2 in the entire first Brillouin zone. We observe a Dirac-cone-like structure in the vicinity of the Fermi level formed by the crossing of two linear energy bands, as well as the nested segments of a Fermi surface pocket emerging from the cone. Our ARPES results show the close relationship of the Dirac cone to the charge-density-wave ordering, providing consistent explanations for exotic behaviors in this material.
Source:
Physical Review B: Condensed Matter and Materials Physics, 2016, 93, 8Funding / projects:
- MOST [2011CBA001000, 2011CBA00102, 2012CB821403, 2013CB921703, 2015CB921301], NSFC from China [11004232, 11034011/A0402, 11274362], Materials Sciences and Engineering Division, Office of Basic Energy Sciences, U.S. DOE [DE-SC00112704], Sino-Swiss Science and Technology Cooperation [IZLCZ2138954], Swiss National Science Foundation [200021-137783]
DOI: 10.1103/PhysRevB.93.081105
ISSN: 2469-9950; 2469-9969
WoS: 000370245900003
Scopus: 2-s2.0-84994050069
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VinčaTY - JOUR AU - Shi, Xun AU - Richard, Pierre AU - Wang, Kefeng AU - Liu, Mian AU - Matt, Christian Egon AU - Xu, N. AU - Dhaka, Rajendra S. AU - Ristić, Zoran AU - Qian, T. AU - Yang, Yi-feng AU - Petrović, Čedomir AU - Shi, M. AU - Ding, Hong PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/940 AB - We present a combined angle-resolved photoemission spectroscopy (ARPES) and first-principles calculations study of the electronic structure of LaAgSb2 in the entire first Brillouin zone. We observe a Dirac-cone-like structure in the vicinity of the Fermi level formed by the crossing of two linear energy bands, as well as the nested segments of a Fermi surface pocket emerging from the cone. Our ARPES results show the close relationship of the Dirac cone to the charge-density-wave ordering, providing consistent explanations for exotic behaviors in this material. T2 - Physical Review B: Condensed Matter and Materials Physics T1 - Observation of Dirac-like band dispersion in LaAgSb2 VL - 93 IS - 8 DO - 10.1103/PhysRevB.93.081105 ER -
@article{ author = "Shi, Xun and Richard, Pierre and Wang, Kefeng and Liu, Mian and Matt, Christian Egon and Xu, N. and Dhaka, Rajendra S. and Ristić, Zoran and Qian, T. and Yang, Yi-feng and Petrović, Čedomir and Shi, M. and Ding, Hong", year = "2016", abstract = "We present a combined angle-resolved photoemission spectroscopy (ARPES) and first-principles calculations study of the electronic structure of LaAgSb2 in the entire first Brillouin zone. We observe a Dirac-cone-like structure in the vicinity of the Fermi level formed by the crossing of two linear energy bands, as well as the nested segments of a Fermi surface pocket emerging from the cone. Our ARPES results show the close relationship of the Dirac cone to the charge-density-wave ordering, providing consistent explanations for exotic behaviors in this material.", journal = "Physical Review B: Condensed Matter and Materials Physics", title = "Observation of Dirac-like band dispersion in LaAgSb2", volume = "93", number = "8", doi = "10.1103/PhysRevB.93.081105" }
Shi, X., Richard, P., Wang, K., Liu, M., Matt, C. E., Xu, N., Dhaka, R. S., Ristić, Z., Qian, T., Yang, Y., Petrović, Č., Shi, M.,& Ding, H.. (2016). Observation of Dirac-like band dispersion in LaAgSb2. in Physical Review B: Condensed Matter and Materials Physics, 93(8). https://doi.org/10.1103/PhysRevB.93.081105
Shi X, Richard P, Wang K, Liu M, Matt CE, Xu N, Dhaka RS, Ristić Z, Qian T, Yang Y, Petrović Č, Shi M, Ding H. Observation of Dirac-like band dispersion in LaAgSb2. in Physical Review B: Condensed Matter and Materials Physics. 2016;93(8). doi:10.1103/PhysRevB.93.081105 .
Shi, Xun , Richard, Pierre, Wang, Kefeng, Liu, Mian , Matt, Christian Egon, Xu, N., Dhaka, Rajendra S., Ristić, Zoran, Qian, T., Yang, Yi-feng, Petrović, Čedomir, Shi, M., Ding, Hong, "Observation of Dirac-like band dispersion in LaAgSb2" in Physical Review B: Condensed Matter and Materials Physics, 93, no. 8 (2016), https://doi.org/10.1103/PhysRevB.93.081105 . .