Ab initio calculations of the physical properties of transition metal carbides and nitrides and possible routes to high-Tc

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 t...

Full description

Saved in:
Bibliographic Details
Main Authors Maksimov, E. G, Ebert, S. V, Magnitskaya, M. V, Karakozov, A. E, Savrasov, S. Yu
Format Journal Article
LanguageEnglish
Published 30.11.2006
Subjects
Physics - Superconductivity
Online AccessGet full text

Cover

More Information
Summary: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.
DOI:10.48550/arxiv.cond-mat/0611782