Soft-Mode-Phonon-Mediated Unconventional Superconductivity in Monolayer 1T '-WTe2
文献类型：期刊论文
| 作者 | Yang, Wei5; Mo, Chong-Jie1; Fu, Shi-Bin5; Yang, Yu2 ; Zheng, Fa-Wei2; Wang, Xiao-Hui5; Liu, Yuan-An5; Hao, Ning3; Zhang, Ping1,2,4
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| 刊名 | PHYSICAL REVIEW LETTERS
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| 出版日期 | 2020-12-02 |
| 卷号 | 125 |
| ISSN号 | 0031-9007 |
| DOI | 10.1103/PhysRevLett.125.237006 |
| 通讯作者 | Hao, Ning(haon@hmfl.ac.cn) |
| 英文摘要 | Recent experiments have tuned the monolayer 1T'-WTe2 to be superconducting by electrostatic gating. Here, we theoretically study the phonon-mediated superconductivity in monolayer 1T'-WTe2 via charge doping. We reveal that the emergence of soft-mode phonons with specific momentum is crucial to give rise to the superconductivity in the electron-doping regime, whereas no such soft-mode phonons and no superconductivity emerge in the hole-doping regime. We also find a superconducting dome, which can be attributed to the change of Fermi surface nesting conditions with electron doping. By taking into account the experimentally established strong anisotropy of temperature-dependent upper critical field H-c2 between the in-plane and out-of-plane directions, we show that the superconducting state probably has the unconventional equal-spin-triplet pairing in the A(u) channel of the C-2h point group. Our studies provide a promising understanding to the doping dependent superconductivity and strong anisotropy of Ha in monolayer 1T'-WTe2, and can be extended to understand the superconductivity in other gated transition metal dichalcogenides. |
| 资助项目 | National Key R&D Program of China[2017YFA0303201] ; National Natural Science Foundation of China[11625415] ; National Natural Science Foundation of China[61605014] ; National Natural Science Foundation of China[11674331] ; National Natural Science Foundation of China[12022413] ; Chinese Academy of Sciences[XDB33030100] ; 100 Talents Project of the Chinese Academy of Sciences ; Collaborative Innovation Program of Hefei Science Center, CAS[2020HSC-CIP002] ; CASHIPS Director's Fund[BJPY2019B03] ; Science Challenge Project[TZ2016001] ; High Magnetic Field Laboratory of Anhui Province, China |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000595171000029 |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; 100 Talents Project of the Chinese Academy of Sciences ; Collaborative Innovation Program of Hefei Science Center, CAS ; CASHIPS Director's Fund ; Science Challenge Project ; High Magnetic Field Laboratory of Anhui Province, China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/105457]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Hao, Ning |
| 作者单位 | 1.Beijing Computat Sci Res Ctr, Beijing 100193, Peoples R China 2.Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China 3.Chinese Acad Sci, HFIPS, High Magnet Field Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, Hefei 230031, Peoples R China 4.Qufu Normal Univ, Sch Phys & Phys Engn, Qufu 273165, Shandong, Peoples R China 5.Beijing Univ Posts & Telecommun, Beijing Key Lab Work Safety Intelligent Monitorin, Beijing 100876, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Wei,Mo, Chong-Jie,Fu, Shi-Bin,et al. Soft-Mode-Phonon-Mediated Unconventional Superconductivity in Monolayer 1T '-WTe2[J]. PHYSICAL REVIEW LETTERS,2020,125. |
| APA | Yang, Wei.,Mo, Chong-Jie.,Fu, Shi-Bin.,Yang, Yu.,Zheng, Fa-Wei.,...&Zhang, Ping.(2020).Soft-Mode-Phonon-Mediated Unconventional Superconductivity in Monolayer 1T '-WTe2.PHYSICAL REVIEW LETTERS,125. |
| MLA | Yang, Wei,et al."Soft-Mode-Phonon-Mediated Unconventional Superconductivity in Monolayer 1T '-WTe2".PHYSICAL REVIEW LETTERS 125(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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