作者: F Marsiglio , JP Carbotte , E Schachinger , None
DOI: 10.1007/BF00684004
关键词: Renormalization 、 Spectral density 、 Superconductivity 、 Transition temperature 、 Work (thermodynamics) 、 Coupling 、 Quantum mechanics 、 Functional derivative 、 Mathematical model 、 Physics
摘要: A formal expression is derived for the functional derivative of specific heat difference with respect to electron-phonon spectral density valid strong coupling superconductors and all temperatures. numerical solution Eliashberg equations required obtain results derivative. Moreover, a previous weak approximation has been extended into regime analytic expressions atT c have derived. Finally, way in which this work encompasses discussed.