Distinct superconducting properties and hydrostatic pressure effects in 2D α- and β -Mo 2 C crystal sheets
文献类型：期刊论文
| 作者 | Yunjie Fan3; Chuan Xu2; Xiang Liu3; Chao Ma3; Yuewei Yin3; Hui-Ming Cheng2; Wencai Ren2; Xiaoguang Li3 |
| 刊名 | NPG Asia Materials
 |
| 出版日期 | 2020 |
| 卷号 | 12 |
| ISSN号 | 1884-4049 |
| 英文摘要 | Recently, 2D Mo 2 C, a new member of the MXene family, has attracted much attention due to the exotic superconducting properties discovered in 2D α -Mo 2 C. Here, not only 2D α -Mo 2 C but also 2D β -Mo 2 C crystal sheets with distinct disordered carbon distributions were successfully grown. 2D β -Mo 2 C shows a much stronger superconductivity than 2D α -Mo 2 C, and their superconductivities have different hydrostatic pressure responses. The superconducting transition temperature T c of 2D α -Mo 2 C shows a dome-shaped profile under pressure, implying the existence of two competing effects arising from phononic and electronic properties, while for 2D β -Mo 2 C, 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 α -Mo 2 C compared to 2D β -Mo 2 C. The ordered and disordered carbon distributions in 2D α -Mo 2 C and β -Mo 2 C, respectively, may be the underlying origin for their different electronic and superconducting properties. |
| 语种 | 英语 |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/124240]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 作者单位 | 1.中国科学院固体物理研究所 2.Institute of Metal Research, Chinese Academy of Sciences 3.中国科学技术大学 4.Collaborative Innovation Center of Advanced Microstructures |
| 推荐引用方式 GB/T 7714 | Yunjie Fan,Chuan Xu,Xiang Liu,et al. Distinct superconducting properties and hydrostatic pressure effects in 2D α- and β -Mo 2 C crystal sheets[J]. NPG Asia Materials,2020,12. |
| APA | Yunjie Fan.,Chuan Xu.,Xiang Liu.,Chao Ma.,Yuewei Yin.,...&Xiaoguang Li.(2020).Distinct superconducting properties and hydrostatic pressure effects in 2D α- and β -Mo 2 C crystal sheets.NPG Asia Materials,12. |
| MLA | Yunjie Fan,et al."Distinct superconducting properties and hydrostatic pressure effects in 2D α- and β -Mo 2 C crystal sheets".NPG Asia Materials 12(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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