✦ LIBER ✦

The First Born Approximation in Estimates of the Threshold Anomalies in the X-Ray Spectra of Simple Metals

✍ Scribed by J. A. Leiro

Publisher: John Wiley and Sons
Year: 1984
Tongue: English
Weight: 380 KB
Volume: 125
Category: Article
ISSN: 0370-1972
DOI: 10.1002/pssb.2221250135

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✦ Synopsis

Abstract

The XPS core line asymmetries and the XAS threshold singularities of Zn, Cd, In, Mg, and Na metals are considered. The singularity indices and threshold exponents, calculated by using the “Z + 1” approximation are compared with experimental values. Furthermore, the results obtained by a partial‐wave method are compared with those estimated by the first Born approximation. It is found that the Born approximation values are in agreement with those within the partialwave method.

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