EVALUATION OF MULTIPLE-SCATTERING CONTRIBUTION IN EXTENDED X-RAY-ABSORPTION FINE-STRUCTURE FOR MO4 AND MO6 CLUSTERS

被引：22

作者：

KUZMIN, A ^{[1
]}

GRISENTI, R ^{[1
]}

机构：

[1] UNIV TRENT,DIPARTIMENTO FIS,I-38050 TRENT,ITALY

来源：

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES | 1994年 / 70卷 / 06期

关键词：

D O I：

10.1080/01418639408240281

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a theoretical ab initio evaluation of the multiple-scattering contribution in the extended X-ray absorption fine structure for MO4 and MO6 clusters with M = Mg, Ca, Mn, Zn, Se, Sr, Mo, Ag, Te, Ba, Nd, Tb, W, Au or Bi. The dependence of the multiple-scattering signal on the absorber type, the photoelectron angular momentum and the local distortion is discussed. It is shown that the multiple-scattering contribution is significant in the photoelectron wave-vector range up to 6-7 angstrom-1 and strongly depends on both the path geometry and the atomic species involved in the scattering process.

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页码：1161 / 1175

页数：15

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