Contributions of multipole terms to the photoelectric yield in X-ray standing-wave measurements

被引：13

作者：

Vartanyants, IA ^{[1
]}

Zegenhagen, J ^{[1
]}

机构：

[1] MAX PLANCK INST FESTKORPERFORSCH,D-70569 STUTTGART,GERMANY

来源：

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA D-CONDENSED MATTER ATOMIC MOLECULAR AND CHEMICAL PHYSICS FLUIDS PLASMAS BIOPHYSICS | 1997年 / 19卷 / 2-4期

关键词：

D O I：

10.1007/BF03041024

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The influence of higher-order multipole terms in the photoelectron yield on the result of an X-ray Standing Wave (XSW) measurement is discussed. The contributions of dipole, quadrupole and octupole term are analyzed for the simple model of a single atom within the XSW field. It is shown that each multipole term shows a different dependence on the polarization Vectors and wavevectors of the direct and diffracted beam. The model is generalized for the case of a monolayer of atoms adsorbed on the surface of a crystal. We outline how multipole contributions can be determined by an XSW measurement.

引用

页码：617 / 624

页数：8

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