CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Evidence of topological insulator state in the semimetal LaBi
Lou, R; Fu, BB; Xu, QN; Guo, PJ; Kong, LY; Zeng, LK; Ma, JZ; Richard, P; Fang, C; Huang, YB; Sun, SS; Wang, Q; Wang, L; Shi, YG; Lei, HC; Liu, K; Weng, HM; Qian, T; Ding, H; Wang, SC
Source PublicationPHYSICAL REVIEW B
AbstractBy employing angle-resolved photoemission spectroscopy combined with first-principles calculations, we performed a systematic investigation on the electronic structure of LaBi, which exhibits extremely large magnetoresistance (XMR), and is theoretically predicted to possess band anticrossing with nontrivial topological properties. Here, the observations of the Fermi-surface topology and band dispersions are similar to previous studies on LaSb [L.-K. Zeng, R. Lou, D.-S. Wu, Q.N. Xu, P.-J. Guo, L.-Y. Kong, Y.-G. Zhong, J.-Z. Ma, B.-B. Fu, P. Richard, P. Wang, G. T. Liu, L. Lu, Y.-B. Huang, C. Fang, S.-S. Sun, Q. Wang, L. Wang, Y.-G. Shi, H. M. Weng, H.-C. Lei, K. Liu, S.-C. Wang, T. Qian, J.-L. Luo, and H. Ding, Phys. Rev. Lett. 117, 127204 (2016)], a topologically trivial XMR semimetal, except the existence of a band inversion along the Gamma-X direction, with one massless and one gapped Dirac-like surface state at the X and Gamma points, respectively. The odd number of massless Dirac cones suggests that LaBi is analogous to the time-reversal Z(2) nontrivial topological insulator. These findings open up a new series for exploring novel topological states and investigating their evolution from the perspective of topological phase transition within the family of rare-earth monopnictides.
Indexed BySCI
WOS IDWOS:000399216900001
Citation statistics
Document Type期刊论文
Recommended Citation
GB/T 7714
Lou, R,Fu, BB,Xu, QN,et al. Evidence of topological insulator state in the semimetal LaBi[J]. PHYSICAL REVIEW B,2017,95(11):-.
APA Lou, R.,Fu, BB.,Xu, QN.,Guo, PJ.,Kong, LY.,...&Wang, SC.(2017).Evidence of topological insulator state in the semimetal LaBi.PHYSICAL REVIEW B,95(11),-.
MLA Lou, R,et al."Evidence of topological insulator state in the semimetal LaBi".PHYSICAL REVIEW B 95.11(2017):-.
Files in This Item: Download All
File Name/Size DocType Version Access License
Evidence of topologi(2196KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Lou, R]'s Articles
[Fu, BB]'s Articles
[Xu, QN]'s Articles
Baidu academic
Similar articles in Baidu academic
[Lou, R]'s Articles
[Fu, BB]'s Articles
[Xu, QN]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Lou, R]'s Articles
[Fu, BB]'s Articles
[Xu, QN]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Evidence of topological insulator state in the semimetal LaBi.pdf
Format: Adobe PDF
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.