Open AccessCOHERENT POTENTIAL APPROXIMATIONS FOR n-COMPONENT LIQUID ALLOYS
Author(s) -
Shen Yu-Tang,
Zhao-Qing Zhang
Publication year - 1981
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.30.992
Subject(s) - coherent potential approximation , lattice (music) , component (thermodynamics) , limit (mathematics) , alloy , physics , transfer (computing) , range (aeronautics) , materials science , condensed matter physics , quantum mechanics , mathematical analysis , electronic structure , mathematics , computer science , parallel computing , acoustics , composite material
Coherent Potential Approximation (CPA) for a n-component liquid alloy is derived by taking the limit of a generalized lattice-gas model, criminally formulated by Yonezawa and Watabe. We have taken the transfer integral tAB between atoms A and B as the geometrical mean of tAA and tBB. In the absence of short range order, our results are consistent with that obtained by Shiba using a coherent locator method.