High Temperature Superconductivity: A Simple Model Exploiting Hydrogen Bonds

Abstract

Lately, there has been much interest in high temperature superconductors, and more recently hydrogen-based superconductors. This work offers a simple model which explains the behavior of the superconducting gap based on BCS theory, and reproduces most effects seen in experiments, including the isotope effect and T_c enhancement as a function of pressure. We show that this is due to a combination of the factors appearing in the gap equation: the matrix element between the proton states, and the level splitting of the proton.

arXiv comment13 pages, 5 figures

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• High temperature superconductivity in sulfur and selenium hydrides at high pressure
• Possible Superconductivity Approaching Ice Point
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• Classifying induced superconductivity in atomically thin Dirac-cone materials
• Classifying superconductivity in ThH-ThD superhydrides/superdeuterides
• Unconventional superconductivity in highly-compressed unannealed sulphur hydride
• Advanced McMillan's equation and its application for the analysis of highly-compressed superconductors
• Debye temperature in LaHx-LaDy superconductors
• Characterization of near-room-temperature superconductivity in yttrium superhydrides
• Unconventional superconductivity in $\zeta$-phase of oxygen compressed to megabar pressure