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Complex Band Structure and Density of States for a One‐Dimensional Model of Transition Metal Alloys
Author(s) -
Richter R.,
Goedsche F.
Publication year - 1978
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.2220880213
Subject(s) - alloy , density of states , binary number , condensed matter physics , scattering , spectrum (functional analysis) , electronic band structure , electronic structure , transition metal , binary alloy , density functional theory , coherent potential approximation , materials science , physics , chemistry , quantum mechanics , mathematics , metallurgy , biochemistry , catalysis , arithmetic
Abstract The multiple‐scattering theory is applied to determine the electronic spectrum of a one‐dimensional binary alloy of spatially non‐overlapping randomly distributed scatterers. A general expression is derived for the alloy density of states using the average‐ T ‐matrix approximation (ATA). Within the framework of the ATA both the complex energy bands and the electronic density of states are calculated numerically for a transition metal like alloy.