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References (7)
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- Publisher
- Springer Journals
- Copyright
- Copyright
- Subject
- Physics; Condensed Matter Physics; Characterization and Evaluation of Materials; Magnetism, Magnetic Materials
- ISSN
- 0022-2291
- eISSN
- 1573-7357
- DOI
- 10.1007/BF00681514
- Publisher site
- See Article on Publisher Site
Abstract
In a foregoing publication a self-consistent phonon theory for configurationally disordered crystals was discussed by W. Biem and the author. In this article some simplifications concerning the coherent potential approximation (CPA) equations and the static relaxations are derived with the help of group-theoretic methods. Besides the familiar reduction of the relevant matrices to block-diagonal form, a very fast Fourier transformation between thek space and the space spanned by symmetry-adapted coordinates is discussed. This allows a solution of the CPA equations without using the real lattice.
Journal
Journal of Low Temperature Physics – Springer Journals
Published: Nov 6, 2004