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
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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


©1985 American Physical Society

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

Comments & Replies

Dependence of Superconducting Transition Temperature on Pressure in Primitive Hexagonal Si

David Erskine and Peter Y. Yu
Phys. Rev. Lett. 56, 2770 (1986)

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Vol. 54, Iss. 21 — 27 May 1985

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