On mechanism of high-temperature superconductivity in hydrogen sulfide at 200 GPa: transition into superconducting anti-adiabatic state in coupling to H-vibrations

Abstract

We have shown that adiabatic electronic structure of superconducting phase of sulphur hydride at 200 GPa is unstable toward vibration motion of H-atoms. Theoretical study indicates that in coupling to H-vibrations, system undergoes transition from adiabatic into stabilised anti-adiabatic multi-gap superconducting state at temperature which can reach 203 K.

Short communication, 2 pgs, 1 Figure with 3 panels

References in corpus (4)

• Conventional superconductivity at 203 K at high pressures
• Hydrogen sulphide at high pressure: a strongly-anharmonic phonon-mediated superconductor
• Cubic H${}_3$S around 200 GPa: an atomic hydrogen superconductor stabilized by sulfur
• Large diameter multiwall nanotubes of MgB2: structural aspects and stability of superconducting nanotubular magnesium boride

Cited by in corpus (3)

• Crystal Structure of 200 K-Superconducting Phase of Sulfur Hydride System
• Band structure and electron-phonon coupling in H${}_3$S:a tight-binding model
• Aspects of strong electron-phonon coupling in superconductivity of compressed metal hydrides MH6 with Im-3m structure