Normalization and convergence of x-ray absorption sum rules

被引：21

作者：

Nesvizhskii, AI ^{[1
]}

Ankudinov, AL ^{[1
]}

Rehr, JJ ^{[1
]}

机构：

[1] Univ Washington, Dept Phys, Seattle, WA 98195 USA

来源：

PHYSICAL REVIEW B | 2001年 / 63卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.63.094412

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A procedure is developed for quantitative applications of the sum rules for x-ray absorption spectra, e.g., for x-ray magnetic circular dichroism. The approach is based on theoretical atomic calculations of transformations relating various experimental spectra to corresponding operator-spectral densities. This approach overcomes the difficulties of background subtraction and hole-count normalization of other sum-rule analysis methods and yields quantitative values for spin and orbital moments from experimental absorption spectra.

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页数：5

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