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8 results on '"Ebert, S. V."'

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

Author

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

Subjects
Condensed Matter - Superconductivity
Abstract

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., Comment: 19 pages, 7 figures

Published
2006
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7. 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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8. AbInitio Calculations of the Superconducting Transition Temperature for NbC at Various Pressures.

Author

Maksimov, E. G., Magnitskaya, M. V., Ebert, S. V., and Savrasov, S. Yu.

Subjects
SUPERCONDUCTORS, NIOBIUM, CARBIDES, TEMPERATURE, PRESSURE, PHYSICAL sciences
Abstract

Abinitio calculations of the superconducting properties have been performed for niobium carbide (NbC) at normal pressure and upon a 15 and 30% compression. Factors accounting for the relatively low values of the transition temperature Tc in transition metal carbides are considered and the possible ways of increasing this parameter are discussed. © 2004 MAIK “Nauka / Interperiodica”. [ABSTRACT FROM AUTHOR]

Published
2004
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