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Superconductivity in systems with local attractive interactions
We discuss approaches based on the concepts of local electron pairing and the superconducting properties which they imply. The nature of the intermediate coupling regime is addressed and a recent progress in the BCS–Bose superconductivity crossover problem is outlined. We also survey the propert...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Інститут фізики конденсованих систем НАН України
1998
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| Series: | Condensed Matter Physics |
| Online Access: | http://dspace.nbuv.gov.ua/handle/123456789/118826 |
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| Summary: | We discuss approaches based on the concepts of local electron pairing
and the superconducting properties which they imply. The nature of the
intermediate coupling regime is addressed and a recent progress in the
BCS–Bose superconductivity crossover problem is outlined. We also survey
the properties of systems with local attractive interactions consisting
of a mixture of local electron pairs and itinerant fermions coupled via a
charge exchange mechanism which mutually induces superconductivity in
both subsystems. Finally, we briefly discuss the question of a pseudogap
and a possible scenario of crossovers in high temperature superconductors |
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