Open AccessTHE INFLUENCE OF DISORDER ON THE ELECTRONIC STRUCTURES OF THE METALLIC SUPERL-ATT1CES——CPA METHOD
Author(s) -
ShiJie Xiong
Publication year - 1985
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.34.774
Subject(s) - hamiltonian (control theory) , materials science , electronic structure , superlattice , diagonal , coherent potential approximation , simple (philosophy) , condensed matter physics , metal , tight binding , physics , mathematics , mathematical optimization , philosophy , geometry , epistemology , metallurgy
The changes of electronic structures in the metallic superlattices due to disorder have been calculated self-consistently by CPA method for a simple model hamiltonian, using tight-binding approximation and only the random distributions of diagonal matrix elements being taken into account. The local densities of electronic states and the curves of self-energy have been obtained for some values of the parameters.