K-ALPHA AND K-BETA X-RAY-EMISSION SPECTRA OF COPPER

被引:144
作者
DEUTSCH, M
HOLZER, G
HARTWIG, J
WOLF, J
FRITSCH, M
FORSTER, E
机构
[1] UNIV JENA, MAX PLANCK ARBEITSGRP RONTGENOPT, D-07743 JENA, GERMANY
[2] EUROPEAN SYNCHROTRON RADIAT FACIL, F-38043 GRENOBLE, FRANCE
[3] UNIV JENA, INST OPT & QUANTENELEKTR, D-07743 JENA, GERMANY
来源
PHYSICAL REVIEW A | 1995年 / 51卷 / 01期
关键词
D O I
10.1103/PhysRevA.51.283
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The K1,2 and K1,3 spectra of copper were measured using double- and single-crystal diffractometers whose finite resolution effects were carefully characterized and corrected for. A phenomenological resolution of the spectra into Lorentzians is given, yielding excellent R factors close to 1%. Fits to our detailed relativistic Dirac-Fock and nonrelativistic Hartree-Fock ab initio calculations reveal that the line shapes can be accounted for by the diagram and the single 3d spectator hole transitions only, with R factors of 35 % (the underline below 3d denotes a hole state). The contribution of the 3d spectator transitions to each of the spectra is 2630 %. The K spectrum may also contain a small 0.5% contribution from the 3p spectator transition. The fit residuals of the K spectrum show systematic deviations in the vicinity of the feature, which may be due to exchange interactions or plasmon excitations. Contributions of similar origins to the K spectrum were not detected. Linewidths, energies, and intensities are reported, for the raw as well as the fit-resolved spectra, and critically compared with previous data, where available. © 1995 The American Physical Society.
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收藏
页码:283 / 296
页数:14
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