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Superconductivity Due to Localized Bipolarons in Metal-Oxide Compounds
Abstract In this article, the effect on superconductivity of a wide band of electrons due to localized bipolarons is studied by Nambu’s formalism. The bipolarons are from electrons of a narrow d band which interact strongly with local phonons and become localized polarons. In the presence of a small mixing term between the wide band electrons and the localized d electrons, we show that the superconducting transition temperature Tc of the system can be drastically enhanced. The order parameters, energy gap and specific heat jump at T=Tc have also been investigated.
Superconductivity Due to Localized Bipolarons in Metal-Oxide Compounds
Abstract In this article, the effect on superconductivity of a wide band of electrons due to localized bipolarons is studied by Nambu’s formalism. The bipolarons are from electrons of a narrow d band which interact strongly with local phonons and become localized polarons. In the presence of a small mixing term between the wide band electrons and the localized d electrons, we show that the superconducting transition temperature Tc of the system can be drastically enhanced. The order parameters, energy gap and specific heat jump at T=Tc have also been investigated.
Superconductivity Due to Localized Bipolarons in Metal-Oxide Compounds
Ting, C. S. (author) / Xing, D. Y. (author)
Novel Superconductivity ; 539-551
1987-01-01
13 pages
Article/Chapter (Book)
Electronic Resource
English
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