ANALYTIC PROPERTIES OF THE KORRINGA-KOHN-ROSTOKER COHERENT-POTENTIAL APPROXIMATION

被引：0

作者：

SURANYI, E

GONIS, A

机构：

[1] Department of Chemistry and Materials Science, Lawrence Livermore National Laboratory, Livermore

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.45.14371

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

It is shown that the coherent-potential approximation when used in connection with the Green-function formalism of Korringa, Kohn, and Rostoker (KKR-CPA) yields an effective-medium propagator and self-energy that possess the proper analytic structure in the complex-energy plane. The proof emphasizes the unifying features of the CPA within the tight-binding and KKR formalisms, and it is valid for the case of both muffin-tin as well as arbitrarily shaped, space-filling potential cells.

引用

页码：14371 / 14373

页数：3

共 7 条

[1]

BUTLER WH, UNPUB

[2] ANALYTIC PROPERTIES OF COHERENT POTENTIAL APPROXIMATION AND OF ITS MOLECULAR GENERALIZATIONS [J].

DUCASTEL.F .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1974, 7 (10) :1795-1816

[3]

FAULKNER JS, 1982, PROGR MATERIALS SCI, V1

[4] MULTIPLE-SCATTERING GREEN-FUNCTION METHOD FOR SPACE-FILLING CELL POTENTIALS [J].

GONIS, A ;

ZHANG, XG ;

NICHOLSON, DM .

PHYSICAL REVIEW B, 1989, 40 (02) :947-965

[5]

Gyorffy B L, 1973, BAND STRUCTURE SPECT, P385

[6]

MILLS R, 1983, PHYS REV B, V27, P3252, DOI 10.1103/PhysRevB.27.3252

[7]

MUELLERHARTMAN E, 1973, SOLID STATE COMMUN, V12, P1269

← 1 →