A new solution to the Anderson-Newns Hamiltonian of chemisorption |
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| Authors: | A. Martin-Rodero F. Flores M. Baldo R. Pucci |
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| Affiliation: | Departamento de Física del Estado Sólido e Instituto de Física del Sólido, Universidad Autónoma de Madrid, Madrid-34, Spain;Instituto di Fisica dell''Università, 95129 Catania, Corso Italia, 57, Italia |
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| Abstract: | A new solution to the Anderson-Newns Hamiltonian of chemisorption is proposed by using the Green-function formalism and an adequate approximation to the adatom self-energy. The method has been checked in simple models. Our results give both the quasi-particle spectrum and the chemisorption energy with a high accuracy better than 99.9%. |
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