Electron-doped phosphorene: A potential monolayer superconductor. (22nd December 2014)

• Record Type: Journal Article
• Authors: Shao, D. F.; Lu, W. J.; Lv, H. Y.; Sun, Y. P.
• Is Part Of: Europhysics letters. Volume 108:Number 6(2014:Dec.)
• Publication Date: 2014-12-22
• Subjects: 74.78.Na -- 73.22.-f -- 63.20.kd; Physics -- Periodicals; Electronic journals; 530.05
• DOI: 10.1209/0295-5075/108/67004
• Languages: English
• ISSNs: 0295-5075

Abstract

Abstract: We predict by first-principles calculations that the electron-doped phosphorene is a potential BCS-like superconductor. The stretching modes at the Brillouin-zone center are remarkably softened by the electron-doping, which results in the strong electron-phonon coupling. The superconductivity can be introduced by a doped electron density above, and may exist over the liquid-helium temperature when . The superconductivity can be significantly tuned and enhanced by applying tensile strain. The maximum critical temperature of electron-doped phosphorene is predicted to be higher than 10 K. The superconductivity of phosphorene will significantly broaden the applications of this novel material.