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 (n2D) above 1.3×1014 cm−2, and may exist over the liquid helium temperature when n2D>2.6×1014 cm−2. The maximum critical temperature is predicted to be higher than 10 K. The superconductivity of phosphorene will significantly broaden the applications of this novel material.
@article{arxiv.1405.0092,
title = {Electron-doped phosphorene: A potential monolayer superconductor},
author = {D. F. Shao and W. J. Lu and H. Y. Lv and Y. P. Sun},
journal= {arXiv preprint arXiv:1405.0092},
year = {2014}
}