Pairing effects in intermediate valence systems

We have calculated the temperature dependence of the energy gap and the critical temperature for intermediate valence systems described by a f-d band model. We consider an attractive interaction between f- and d-conduction electrons mediated by phonon exchange with formation of a hybrid d-f pair. We...

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Bibliographic Details
Published inJournal of magnetism and magnetic materials Vol. 47; pp. 400 - 402
Main Authors Valadares, E.C., Troper, A., de Menezes, O.L.T.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.01.1985
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Summary:We have calculated the temperature dependence of the energy gap and the critical temperature for intermediate valence systems described by a f-d band model. We consider an attractive interaction between f- and d-conduction electrons mediated by phonon exchange with formation of a hybrid d-f pair. We find that the superconducting state can be stabilized when the ratio between the f- and d-bandwidths is greater than a critical value.
ISSN:0304-8853
DOI:10.1016/0304-8853(85)90450-0