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Electronic Structure of Niobium Nitrocarbides
Author(s) -
Nikiforov I. Ya.,
Kolpachev A. B.
Publication year - 1988
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221480118
Subject(s) - niobium , superconductivity , electronic structure , condensed matter physics , fermi level , scattering , stoichiometry , tin , materials science , chemistry , physics , metallurgy , quantum mechanics , electron
In terms of multiple scattering theory using the crystalline muffin‐tin potential and taking into account the scattering on a finite number of atoms the electronic structure of pseudobinary solid solutions NbC x N 1− x is calculated for x = 1.0, 0.75, 0.5, 0.25, 0.12, and 0. A comparison with APW results is made for x = 0 and 1. It is shown, that the local partial densities of electronic states (DOS) of constituents differ from those in stoichiometric substances. The dependence of DOS at the Fermi level on carbon concentration x correlates with the dependence of superconducting transition temperature on x .