中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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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