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Electronic states in some disordered noble metal—transition metal alloys
Author(s) -
Stocks G. M.
Publication year - 2009
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560050861
Subject(s) - scattering , coherent potential approximation , metal , condensed matter physics , electronic structure , noble metal , transition metal , materials science , electronic band structure , crystal (programming language) , atomic physics , chemistry , physics , metallurgy , quantum mechanics , biochemistry , catalysis , computer science , programming language
It is shown that the coherent potential approximation is capable of explaining the densities of states functions as observed in the photoemission experiment for noble metal rich alloys of CuPd, CuNi and AgPd. The analysis reveals the importance of the separation in energy between the d‐scattering resonances associated with each of the constituent atomic species in these alloys. In all of these alloys the separation between the d‐scattering resonances is sufficient to render both the rigid band and the virtual crystal approximations in capable of explaining the observed photoemission data.