Unexpected anisotropic compression-induced superconductivity in pristine 2H-MoTe2
文献类型：期刊论文
| 作者 | Lin, Tao1 ; Lv, Run2,5; Dong, Qing3; Li, Chenyi1; Liu, Bo1; Liu, Ran1; Jing, Xiaoling1; Sun, Yuping4,5; Li, Quanjun1; Lu, Wenjian5
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| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2024-09-13 |
| 卷号 | 110 |
| ISSN号 | 2469-9950 |
| DOI | 10.1103/PhysRevB.110.104511 |
| 通讯作者 | Li, Quanjun(liquanjun@jlu.edu.cn) ; Lu, Wenjian(wjlu@issp.ac.cn) ; Liu, Bingbing(liubb@jlu.edu.cn) |
| 英文摘要 | High-pressure application is crucial for shaping material properties and revealing novel phenomena. Materials undergo more unpredictable transitions in their crystal and electronic structures under nonhydrostatic/isotropic pressures than under hydrostatic conditions. However, limited knowledge regarding this behavior exists due to a scarcity of relevant studies. In this study, we systematically investigated the evolution of the structure and electronic states of pristine 2H-MoTe2 in anisotropic pressure environments. Surprisingly, we observed anisotropic compression-induced superconductivity in this material, a phenomenon that is absent in quasihydrostatic environments. High-pressure x-ray diffraction and Raman spectroscopy measurements showed no structural phase transitions; however, an anomalous compressive behavior was observed along the c axis. An anisotropic pressure model was proposed based on experimental conditions. First-principles calculations revealed that a strengthened anisotropic compression effect could enhance electron-phonon coupling by increasing the density of states on the Fermi level and softening the phonon modes, contributing to the emergence of superconductivity in 2H-MoTe2. Our findings offer a route for inducing superconductivity, providing insights into the nature of superconductivity in transition metal dichalcogenides and other similar layered compounds under extreme conditions. |
| WOS关键词 | HIGH-PRESSURE ; BAND-STRUCTURE ; DENSITY ; TRANSITION ; SCATTERING |
| 资助项目 | National Key Research and Development Program of China[2022YFA1402302] ; National Key Research and Development Program of China[2022YFA1403203] ; National Natural Science Foundation of China[U2032215] ; National Natural Science Foundation of China[11634004] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001322556100001 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/135688]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Li, Quanjun; Lu, Wenjian; Liu, Bingbing |
| 作者单位 | 1.Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Jilin, Peoples R China 2.Univ Sci & Technol China, Sci Isl Branch, Grad Sch, Hefei 230026, Peoples R China 3.Seoul Natl Univ, Inst Appl Phys, Dept Phys & Astron, Seoul 08826, South Korea 4.Chinese Acad Sci, High Magnet Field Lab, HFIPS, Hefei 230031, Peoples R China 5.Chinese Acad Sci, Inst Solid State Phys, HFIPS, Key Lab Mat Phys, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lin, Tao,Lv, Run,Dong, Qing,et al. Unexpected anisotropic compression-induced superconductivity in pristine 2H-MoTe2[J]. PHYSICAL REVIEW B,2024,110. |
| APA | Lin, Tao.,Lv, Run.,Dong, Qing.,Li, Chenyi.,Liu, Bo.,...&Liu, Bingbing.(2024).Unexpected anisotropic compression-induced superconductivity in pristine 2H-MoTe2.PHYSICAL REVIEW B,110. |
| MLA | Lin, Tao,et al."Unexpected anisotropic compression-induced superconductivity in pristine 2H-MoTe2".PHYSICAL REVIEW B 110(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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