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Strain-enhanced superconductivity of MoX2(X=S or Se) bilayers with Na intercalation.
- Source :
-
Physical Review B . Apr2016, Vol. 93 Issue 15, p1-1. 1p. - Publication Year :
- 2016
-
Abstract
- MoX2(X=S or Se) is a semiconductor family with two-dimensional structure. And a recent calculation predicted the superconductivity in the electron-doped MoS2 monolayer. In this work, the electronic structure and lattice dynamics of MoX2 bilayers with monolayer Na intercalated have been calculated. According to the electron-phonon interaction, it is predicted that these bilayers can be transformed from indirect-gap semiconductors to superconductors by Na intercalation. More interestingly, the biaxial tensile strain can significantly enhance the superconducting temperature up to ~10 K in Na-intercalated MoS2. In addition, the phonon mean free path at room temperature is also greatly improved in Na-intercalated MoSe2, which is advantageous for related applications. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SUPERCONDUCTIVITY
*MOLYBDENUM sulfides
*LATTICE dynamics
Subjects
Details
- Language :
- English
- ISSN :
- 24699950
- Volume :
- 93
- Issue :
- 15
- Database :
- Academic Search Index
- Journal :
- Physical Review B
- Publication Type :
- Academic Journal
- Accession number :
- 117488926
- Full Text :
- https://doi.org/10.1103/PhysRevB.93.155430