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APS » Journals » Phys. Rev. Lett. » Volume 54 » Issue 21
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Phys. Rev. Lett. 54, 2375–2378 (1985)

Superconductivity in High-Pressure Metallic Phases of Si

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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

Received 29 January 1985; published in the issue dated 27 May 1985

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.

© 1985 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.54.2375
DOI:
10.1103/PhysRevLett.54.2375
PACS:
74.10.+v, 63.20.Kr, 74.20.Fg

See Also

Comment: David Erskine and Peter Y. Yu, Dependence of Superconducting Transition Temperature on Pressure in Primitive Hexagonal Si, Phys. Rev. Lett. 56, 2770 (1986).

 
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