Mean-field approximations for the electronic states in disordered alloys
作者： J. S. Faulkner , S. Pella , A. Rusanu , Y. Puzyrev , Th. Leventouri
DOI: 10.1080/14786430500398417
关键词: Condensed matter physics 、 Local-density approximation 、 Mean field theory 、 Coherent potential approximation 、 Materials science 、 Electronic structure 、 Statistical physics 、 Born–Huang approximation 、 Muffin-tin approximation 、 Strongly correlated material 、 Coulomb
摘要: Mean-field approximations are used to find approximate solutions the one-electron equations for electronic states in disordered alloys because ordinary band-theory approaches not applicable. The first mean-field approximation, coherent potential does treat Coulomb effects correctly. This has been improved by changing way approximation is implemented. It may be that this experience with will useful combination of many-body theory and produced dynamical mean field treating strongly correlated electron systems.
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