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3. Ab initio calculations of the physical properties of transition metal carbides and nitrides and possible routes to high- T c superconductivity.

Author

Maksimov, E. G., Ebert, S. V., Magnitskaya, M. V., and Karakozov, A. E.

Subjects
*CHANGE, *CARBIDES, *NITRIDES, *ELECTRIC conductivity, *DYNAMICS
Abstract

We report ab initio linear-response calculations of the phonon spectra and the electron-phonon interaction for several transition metal carbides and nitrides in a NaCl-type structure. For NbC, the kinetic, optical, and superconducting properties are calculated in detail at various pressures and the normal-pressure results are found to agree well with the experiment. Factors accounting for the relatively low critical temperatures T c in transition metal compounds with light elements are considered and the possible ways of increasing T c are discussed. [ABSTRACT FROM AUTHOR]

Published
2007
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