Journal
EUROPEAN PHYSICAL JOURNAL B
Volume 37, Issue 3, Pages 345-348Publisher
SPRINGER
DOI: 10.1140/epjb/e2004-00065-5
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The two-band model as introduced by Suhl, Matthias and Walker [Phys. Rev. Lett. 3, 552 (1959)] accounts for multiple energy bands in the vicinity of the Fermi energy which could contribute to electron pairing in superconducting systems. Here, extensions of this model are investigated wherein the effects of coupled superconducting order parameters with different symmetries and the presence of strong electron-lattice coupling on the superconducting transition temperature T-c are studied . Substantial enhancements of T-c are obtained from both effects.
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