Electron, Phonon, and Superconducting Properties of Yttrium and Sulfur Hydrides under High Pressures

We have analyzed the electron, phonon, and superconducting properties of binary hydrides YH6, H3S, YH10, UH10, and CaH10, as compared to the properties of ternary hydride YS4H4 using a unified physical and computational approach to determining the stability range and the superconducting transition temperature. The normal and superconducting characteristics of ternary hydride YS4H4 at high pressure are calculated. The results for ternary hydride YS4H4 are compared with the properties of YH6, H3S, YH10, UH10, and CaH10 compounds.