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DOI | 10.1038/s41467-019-11006-1 |
Topological superconductivity in monolayer transition metal dichalcogenides | |
Hsu, Yi-Ting1; Vaezi, Abolhassan2; Fischer, Mark H.3; Kim, Eun-Ah1 | |
2019-07-30 | |
发表期刊 | NATURE COMMUNICATIONS
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ISSN | 2041-1723 |
出版年 | 2017 |
卷号 | 8 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Israel |
英文摘要 | Theoretically, it has been known that breaking spin degeneracy and effectively realizing spinless fermions is a promising path to topological superconductors. Yet, topological superconductors are rare to date. Here we propose to realize spinless fermions by splitting the spin degeneracy in momentum space. Specifically, we identify monolayer hole-doped transition metal dichalcogenide (TMD)s as candidates for topological superconductors out of such momentum-space-split spinless fermions. Although electron-doped TMDs have recently been found superconducting, the observed superconductivity is unlikely topological because of the near spin degeneracy. Meanwhile, hole-doped TMDs with momentum-space-split spinless fermions remain unexplored. Employing a renormalization group analysis, we propose that the unusual spin-valley locking in hole-doped TMDs together with repulsive interactions selectively favours two topological superconducting states: interpocket paired state with Chern number 2 and intrapocket paired state with finite pair momentum. A confirmation of our predictions will open up possibilities for manipulating topological superconductors on the device-friendly platform of monolayer TMDs. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000398835100001 |
WOS关键词 | SURFACE ; MOS2 ; POLARIZATION ; FERMIONS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204471 |
专题 | 资源环境科学 |
作者单位 | 1.Cornell Univ, Dept Phys, Ithaca, NY 14853 USA; 2.Stanford Univ, Dept Phys, Stanford, CA 94305 USA; 3.Weizmann Inst Sci, Dept Condensed Matter Phys, IL-7610001 Rehovot, Israel |
推荐引用方式 GB/T 7714 | Hsu, Yi-Ting,Vaezi, Abolhassan,Fischer, Mark H.,et al. Topological superconductivity in monolayer transition metal dichalcogenides[J]. NATURE COMMUNICATIONS,2019,8. |
APA | Hsu, Yi-Ting,Vaezi, Abolhassan,Fischer, Mark H.,&Kim, Eun-Ah.(2019).Topological superconductivity in monolayer transition metal dichalcogenides.NATURE COMMUNICATIONS,8. |
MLA | Hsu, Yi-Ting,et al."Topological superconductivity in monolayer transition metal dichalcogenides".NATURE COMMUNICATIONS 8(2019). |
条目包含的文件 | 条目无相关文件。 |
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