| Distinct superconducting properties and hydrostatic pressure effects in 2D alpha- and beta-Mo2C crystal sheets | |
| Fan, Yunjie1,2; Xu, Chuan3; Liu, Xiang1,2; Ma, Chao1,2; Yin, Yuewei1,2; Cheng, Hui-Ming3,4; Ren, Wencai3,4; Li, Xiaoguang1,2,5,6 | |
| Corresponding Author | Yin, Yuewei(yyw@ustc.edu.cn) ; Ren, Wencai(wcren@imr.ac.cn) ; Li, Xiaoguang(lixg@ustc.edu.cn) |
| 2020-09-11 | |
| Source Publication | NPG ASIA MATERIALS
 |
| ISSN | 1884-4049 |
| Volume | 12Issue:1Pages:9 |
| Abstract | Recently, 2D Mo2C, a new member of the MXene family, has attracted much attention due to the exotic superconducting properties discovered in 2D alpha-Mo2C. Here, not only 2D alpha-Mo2C but also 2D beta-Mo2C crystal sheets with distinct disordered carbon distributions were successfully grown. 2D beta-Mo2C shows a much stronger superconductivity than 2D alpha-Mo2C, and their superconductivities have different hydrostatic pressure responses. The superconducting transition temperatureT(c)of 2D alpha-Mo2C shows a dome-shaped profile under pressure, implying the existence of two competing effects arising from phononic and electronic properties, while for 2D beta-Mo2C,T(c)decreases monotonically with increasing pressure, possibly due to phonon stiffening. These results indicate that the electronic properties have a more important influence on the superconductivity in 2D alpha-Mo2C compared to 2D beta-Mo2C. The ordered and disordered carbon distributions in 2D alpha-Mo2C and beta-Mo2C, respectively, may be the underlying origin for their different electronic and superconducting properties. |
| Funding Organization | National Natural Science Foundation of China ; National Key Research and Development Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences |
| DOI | 10.1038/s41427-020-00242-3 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51790491] ; National Natural Science Foundation of China[21521001] ; National Natural Science Foundation of China[51972296] ; National Natural Science Foundation of China[51325205] ; National Natural Science Foundation of China[51290273] ; National Natural Science Foundation of China[51802314] ; National Key Research and Development Program of China[2016YFA0300103] ; National Key Research and Development Program of China[2019YFA0307900] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB30000000] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2018223] |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Multidisciplinary |
| WOS ID | WOS:000571838900002 |
| Publisher | NATURE RESEARCH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/140582 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Yin, Yuewei; Ren, Wencai; Li, Xiaoguang |
| Affiliation | 1.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Dept Phys, Hefei 230026, Peoples R China 2.Univ Sci & Technol China, CAS Key Lab Strongly Coupled Quantum Matter Phys, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 5.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230026, Peoples R China 6.Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China |
| Recommended Citation GB/T 7714 | Fan, Yunjie,Xu, Chuan,Liu, Xiang,et al. Distinct superconducting properties and hydrostatic pressure effects in 2D alpha- and beta-Mo2C crystal sheets[J]. NPG ASIA MATERIALS,2020,12(1):9. |
| APA | Fan, Yunjie.,Xu, Chuan.,Liu, Xiang.,Ma, Chao.,Yin, Yuewei.,...&Li, Xiaoguang.(2020).Distinct superconducting properties and hydrostatic pressure effects in 2D alpha- and beta-Mo2C crystal sheets.NPG ASIA MATERIALS,12(1),9. |
| MLA | Fan, Yunjie,et al."Distinct superconducting properties and hydrostatic pressure effects in 2D alpha- and beta-Mo2C crystal sheets".NPG ASIA MATERIALS 12.1(2020):9. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment