Theoretical prediction of topological insulators in thallium-based III-V-VI2 ternary chalcogenides
文献类型：期刊论文
| 作者 | Yan, BH ; Liu, CX ; Zhang, HJ ; Yam, CY ; Qi, XL ; Frauenheim, T ; Zhang, SC |
| 刊名 | EPL
 |
| 出版日期 | 2010 |
| 卷号 | 90期号:3 |
| 关键词 | HGTE QUANTUM-WELLS SINGLE DIRAC CONE TLBITE2 SUPERCONDUCTIVITY SURFACE BI2TE3 PHASE |
| ISSN号 | 0295-5075 |
| 通讯作者 | Yan, BH (reprint author), Univ Bremen, Bremen Ctr Computat Mat Sci, Fallturm 1, D-28359 Bremen, Germany. |
| 中文摘要 | We predict a new class of three-dimensional topological insulators in thallium-based III-V-VI2 ternary chalcogenides, including TlBiQ(2) and TlSbQ(2) (Q = Te, Se and S). These topological insulators have robust and simple surface states consisting of a single Dirac cone at the G point. The mechanism for topological insulating behavior is elucidated using both first-principle calculations and effective field theory models. Remarkably, one topological insulator in this class, TlBiTe2, is also a superconductor when doped with p-type carriers. We discuss the possibility that this material could be a topological superconductor. Another material, TlSbS2, is on the border between topological insulator and trivial insulator phases, in which a topological phase transition can be driven by pressure. |
| 收录类别 | SCI |
| 资助信息 | Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-AC02-76SF00515]; Alexander von Humboldt Foundation of Germany |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/45640]  |
| 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 | Yan, BH,Liu, CX,Zhang, HJ,et al. Theoretical prediction of topological insulators in thallium-based III-V-VI2 ternary chalcogenides[J]. EPL,2010,90(3). |
| APA | Yan, BH.,Liu, CX.,Zhang, HJ.,Yam, CY.,Qi, XL.,...&Zhang, SC.(2010).Theoretical prediction of topological insulators in thallium-based III-V-VI2 ternary chalcogenides.EPL,90(3). |
| MLA | Yan, BH,et al."Theoretical prediction of topological insulators in thallium-based III-V-VI2 ternary chalcogenides".EPL 90.3(2010). |
入库方式： OAI收割
来源：物理研究所
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