Direct observation of the spin texture in SmB6 as evidence of the topological Kondo insulator
文献类型：期刊论文
| 作者 | Xu, N ; Biswas, PK ; Dil, JH ; Dhaka, RS ; Landolt, G ; Muff, S ; Matt, CE ; Shi, X ; Plumb, NC ; Radovic, M ; Pomjakushina, E ; Conder, K ; Amato, A ; Borisenko, SV ; Yu, R ; Weng, HM ; Fang, Z ; Dai, X ; Mesot, J ; Ding, H ; Shi, M |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2014 |
| 卷号 | 5 |
| ISSN号 | 2041-1723 |
| 通讯作者 | Xu, N (reprint author), Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland. |
| 中文摘要 | Topological Kondo insulators have been proposed as a new class of topological insulators in which non-trivial surface states reside in the bulk Kondo band gap at low temperature due to strong spin-orbit coupling. In contrast to other three-dimensional topological insulators, a topological Kondo insulator is truly bulk insulating. Furthermore, strong electron correlations are present in the system, which may interact with the novel topological phase. By applying spin- and angle-resolved photoemission spectroscopy, here we show that the surface states of SmB6 are spin polarized. The spin is locked to the crystal momentum, fulfilling time reversal and crystal symmetries. Our results provide strong evidence that SmB6 can host topological surface states in a bulk insulating gap stemming from the Kondo effect, which can serve as an ideal platform for investigating of the interplay between novel topological quantum states with emergent effects and competing orders induced by strongly correlated electrons. |
| 资助信息 | Sino-Swiss Science and Technology Cooperation [IZLCZ2138954]; Swiss National Science Foundation [200021-137783, PP00P2_144742]; MOST [2010CB923000]; NSFC |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59384]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Xu, N,Biswas, PK,Dil, JH,et al. Direct observation of the spin texture in SmB6 as evidence of the topological Kondo insulator[J]. NATURE COMMUNICATIONS,2014,5. |
| APA | Xu, N.,Biswas, PK.,Dil, JH.,Dhaka, RS.,Landolt, G.,...&Shi, M.(2014).Direct observation of the spin texture in SmB6 as evidence of the topological Kondo insulator.NATURE COMMUNICATIONS,5. |
| MLA | Xu, N,et al."Direct observation of the spin texture in SmB6 as evidence of the topological Kondo insulator".NATURE COMMUNICATIONS 5(2014). |
入库方式： OAI收割
来源：物理研究所
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