High-temperature study of superconducting hydrogen and deuterium sulfide

摘要: Hydrogen-rich compounds are extensively explored as candidates for a high-temperature superconductors. Currently, the measured critical temperature of $203$ K in hydrogen sulfide (H$_3$S) is among highest over all-known In present paper, using strong-coupling Eliashberg theory superconductivity, we compared detail thermodynamic properties two samples containing different isotopes H$_3$S and D$_3$S at $150$ GPa. Our research indicates that it possible to reproduce values $147$ by Coulomb pseudopotential $0.123$ $0.131$, respectively. However, also discuss scenario which isotope effect independent pressure smaller than H$_3$S. For both scenarios, energy gap, specific heat, field related dimensionless ratios calculated with other conventional We shown existence retardation effects systems analysed result significant differences between obtained within framework formalism prediction Bardeen-Cooper-Schrieffer theory.