Superconductivity in High-Pressure Metallic Phases of Si

K. J. Chang; Michel M. Dacorogna; Marvin L. Cohen; J. M. Mignot; G. Chouteau; G. Martinez

doi:10.1103/PhysRevLett.54.2375

Superconductivity in High-Pressure Metallic Phases of Si

K. J. Chang, Michel M. Dacorogna, Marvin L. Cohen, J. M. Mignot, G. Chouteau, and G. Martinez

Phys. Rev. Lett. 54, 2375 – Published 27 May 1985

Abstract

Superconductivity in the simple hexagonal phase of silicon is predicted on the basis of an electron-phonon-coupling calculation and measured experimentally up to a pressure of 25 GPa in a Bridgman-type opposed-anvil device. The highest measured superconducting transition temperature is 8.2 K at 15 GPa for the simple hexagonal phase.

Received 29 January 1985

DOI:https://doi.org/10.1103/PhysRevLett.54.2375

Authors & Affiliations

K. J. Chang, Michel M. Dacorogna, and Marvin L. Cohen

Department of Physics, University of California, and Materials and Molecular Research Division, Lawrence Berkeley Laboratory, Berkeley, California 94720

J. M. Mignot

Centre de Recherches sur les Très Basses Températures-Centre National de Recherche Scientifique, F-38042 Grenoble Cedex, France

G. Chouteau and G. Martinez

Service National des Champs Intenses-Centre National de Recherche Scientifique, Laboratoire associé à l'Université Scientifique et Médicale de Grenoble, F-38042 Grenoble Cedex, France