From E2g to other modes: effects of pressure on electron-phonon interaction in MgB2.
We study the effects of pressure on the electron-phonon interaction in MgB2 using density-functional-based methods. Our results show that the superconductivity in MgB2 vanishes by 100 GPa, and then reappears at higher pressures. In particular, we find a superconducting transition temperature Tc approximately 2 K for mu*=0.1 at a pressure of 137 GPa.
Singh
Prabhakar P
PP
Department of Physics, Indian Institute of Technology, Powai, Mumbai- 400076, India. ppsingh@phy.iitb.ac.in