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Self-consistent cluster-Bethe-lattice study of two-band alloy model |
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| Authors: | Rejane M Ribeiro Teixeira CET Gonçalves da Silva |
| Institution: | 1. Instituto de Física “Gleb Wataghin” UNICAMP, Campinas 13100, SP, Brasil;2. Instituto de Física Universidade Federal do Rio Grande do Sul Porto Alegre 90000, RS, Brasil;3. Institut de Physique Théorique Université de Lausanne CH-1015 Dorigny, Suisse;4. Instituto de Física “Gleb Wataghin” UNICAMP, Campinas 13100, SP, Brasil |
| Abstract: | The cluster-Bethe-Lattice method is applied to a model two-band alloy. Intra-atomic Coulomb interactions are taken into account within the Hartree-Fock approximation. Charge transfer effects are treated self-consistently. A numerical calculation with parameters appropriate for the AuAg system yields results which are in qualitative agreement with experiments. |
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