Diagram of the Critical Temperature—Nernst Temperature for the Superconductivity Induced by Modified Electron-Phonon Interaction

作者: R. Szczȩśniak , A. P. Durajski , A. M. Duda , P. Tarasewicz

DOI: 10.1007/S10948-017-4171-9

关键词: Canonical transformationDiagramPhysicsBand gapElectron phononSuperconductivityCuprateNernst equationCondensed matter physics

摘要: We have taken into consideration the Eliashberg equations based on electron-phonon and electron-electron-phonon interaction. It has been shown that set generalizes model canonical transformation, which for cuprates quantitatively associates with each other critical temperature (T C ), Nernst ⋆⋆), energy gap at 0 K. Next, we derived analytical formulas basic thermodynamic parameters. The conducted analysis allowed to designate T - ⋆⋆ diagram. Finally, found limitation from below value of ⋆⋆, occurring higher than 150

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