The higher superconducting transition temperature T c and the functional derivative of T c with α 2 F(ω) for electron–phonon superconductors

@article{CamargoMartinez2020TheHS,
  title={The higher superconducting transition temperature T c and the functional derivative of T c with $\alpha$ 2 F($\omega$) for electron–phonon superconductors},
  author={J. A. Camargo-Mart'inez and G. I. Gonz'alez-Pedreros and F Mesa},
  journal={Journal of Physics: Condensed Matter},
  year={2020},
  volume={32}
}
This work presents an analysis of the functional derivative of the superconducting transition temperature T c with respect to the electron-phonon coupling function α 2 F(ω) [δT c/δα 2 F(ω)] and α 2 F(ω) spectrum of H3S ( Im3̄m ), in the pressure range where the high-T c was measured (155–225 GPa). The calculations are done in the framework of the Migdal–Eliashberg theory. We find for this electron–phonon superconductor, a correlation between the maximums of δT c/δα 2 F(ω) and α 2 F(ω) with its… 

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