Pair-transfer superconductivity in the Anderson model

B. Nathanson, O. Entin-Wohlman

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Anderson's model for localized impurity states hybridized with the conduction band is extended to include transfers of pairs of electrons between the band states and the localized levels. The interplay between the hybridization and the pair-transfer coupling is analyzed. It is found that when the effect of the hybridization is small and the localized states are not resonant, the temperature range over which the system is superconducting is increased by the pair-transfer mechanism. In the opposite case, the pair-transfer coupling combines with the hybridization to reduce that range. Thus, pair-transfer interaction can be detrimental to superconductivity.

Original languageEnglish
Pages (from-to)15377-15380
Number of pages4
JournalPhysical Review B
Issue number21
StatePublished - 1 Jan 1994
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics


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