Evidence of topological insulator state in the semimetal LaBi
文献类型：期刊论文
| 作者 | Lou, R; Fu, BB; Xu, QN; Guo, PJ; Kong, LY; Zeng, LK; Ma, JZ; Richard, P; Fang, C; Huang, YB |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2017 |
| 卷号 | 95期号:11页码:- |
| ISSN号 | 2469-9950 |
| DOI | 10.1103/PhysRevB.95.115140 |
| 文献子类 | 期刊论文 |
| 英文摘要 | By 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. |
| 语种 | 英语 |
| WOS记录号 | WOS:000399216900001 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/27318]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 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):-. |
入库方式： OAI收割
来源：上海应用物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。