Pair distribution function and x-ray absorption signatures of rotational and radial local distortions in a model system with average long-range order

被引：17

作者：

Dimitrov, DA ^{[1
]}

Ankudinov, AL ^{[1
]}

Bishop, AR ^{[1
]}

Conradson, SD ^{[1
]}

机构：

[1] Univ Calif Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

PHYSICAL REVIEW B | 1998年 / 58卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.58.14227

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The signatures of local distortions in three-dimensional crystalline structures are studied by calculating extended x-ray absorption fine structure (EXAFS) spectra and pair distribution functions (PDF) from a binary system with several different concentrations of randomly distributed radial, rotational, or buckling static distortions. The PDF and EXAFS are examined to determine if unique signatures for the different distortion scan be obtained. It is shown how the complementarity of the PDF and EXAFS data can be used to effectively separate the radial from the rotational local distortions. [S0163-1829(98)04445-2].

引用

页码：14227 / 14237

页数：11

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