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- W2072005274 abstract "The superconducting transition temperature, Tc, has been studied using the strongly coupled theory of superconductors in high-Tc YBa2Cu3O7 in the presence of realistic physical parameters, thermal phonons and two-dimensional acoustic plasmons. The calculated value of Tc, using a realistic phonon distribution function, the electron-electron Coulomb interaction and the Stoner factor, comes out to be ≈ 65 K. When the finite temperature effect is taken into account through the modification of the temperature dependence of the electron-phonon mass enhancement factor, the value of Tc increases significantly by ≈ 18 K to ≈ 83 K. Finally, when the two-dimensional acoustic plasmons are considered, a further increase of ≈ 17 K results, making the calculated Tc ≈ 102 K, which is in reasonable agreement with the experimental results. The superconductivity in YBa2Cu3O7 is, thus, marked by strong coupling effects, electron-phonon interaction, the finite temperature effect and electron-plasmon interaction, which contribute significantly towards its high Tc." @default.
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- W2072005274 date "1990-05-01" @default.
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- W2072005274 title "Effect of thermal phonons and two-dimensional acoustic plasmons on superconductivity in YBa2CuO7" @default.
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- W2072005274 doi "https://doi.org/10.1016/0921-4534(90)90347-h" @default.
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