Physics – Condensed Matter – Superconductivity
Scientific paper
2006-11-30
Physics
Condensed Matter
Superconductivity
19 pages, 7 figures
Scientific paper
10.1134/S1063776107090221
Ab initio linear-response calculations are reported 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 well agree with the experiment. Factors accounting for the relatively low critical temperatures Tc in transition metal compounds with light elements are considered and the possible ways of increasing Tc are discussed.
Ebert S. V.
Karakozov A. E.
Magnitskaya M. V.
Maksimov E. G.
Savrasov Sergej Y.
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