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2001 | 99 | 3-4 | 473-477
Article title

Electron-Positron Correlations in Paramagnetic Chromium

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EN
Abstracts
EN
Several approximations for the electron-positron interaction are applied to study the electron-positron momentum densities of paramagnetic chromium. The non-local and state selective electron-positron correlation functions, evaluated within the weighted density approximation, are used to calculate various positron annihilation characteristics in this system. The weighted density approximation results are compared to the experimental data, and to the corresponding results of the independent particle model, local density approximation, and generalised gradient approximation. Also, the semi-empirical results are used in gaining more physical insight and deriving final conclusions of this work.
Keywords
EN
Contributors
author
  • W. Trzebiatowski Institute of Low Temperatures and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław 2, Poland
author
  • Daresbury Laboratory, Daresbury, Warrington, WA4 4AD, Cheshire, UK
author
  • Daresbury Laboratory, Daresbury, Warrington, WA4 4AD, Cheshire, UK
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv99n324kz
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