Crystal structure of the superconducting phase of sulfur hydride

2015/09/10 by Mari Einaga, Masafumi Sakata, M. Sakata +10 · 8 citations
Chemistry · Earth and Planetary Sciences · Physics and Astronomy · #Advanced Chemical Physics Studies #Chemical physics #Chemistry #Condensed matter physics #Crystal (programming language) #Crystal structure #Crystallography #Decomposition #Diffraction #High-pressure geophysics and materials #Hydride #Hydrogen #Hydrogen sulfide #Materials science #Metallurgy #Optics #Phase (matter) #Physics #Quantum, superfluid, helium dynamics #Sulfur #Superconductivity #cond-mat.mtrl-sci #cond-mat.supr-con

paper · pdf · doi:10.1038/nphys3760

8 pages, 3 figures

arxiv created 2015/09/10 · openalex publication_date 2016/05/09 · arxiv updated 2016/05/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

This article reports the experimentally clarified crystal structure of a recently discovered sulfur hydride in high temperature superconducting phase which has the highest critical temperature Tc over 200 K which has been ever reported. For understanding the mechanism of the high superconductivity, the information of its crystal structure is very essential. Herein we have carried out the simultaneous measurements electrical resistance and synchrotron x-ray diffraction under high pressure, and clearly revealed that the hydrogen sulfide, H2S, decomposes to H3S and its crystal structure has body-centered cubic symmetry in the superconducting phase.

Citations

• Generalized Gradient Approximation Made Simple
• Finite strain isotherm and velocities for single‐crystal and polycrystalline NaCl at high pressures and 300°K
• The metallization and superconductivity of dense hydrogen sulfide
• Soft self-consistent pseudopotentials in a generalized eigenvalue formalism
• QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials
• Pressure and high Tc superconductivity: applications to sulfur hydrides
• On the mechanism of high-temperature superconductivity in hydrogen sulfide at 200 GPa: Transition into superconducting anti-adiabatic state in coupling to H-vibrations
• Conventional superconductivity at 190 K at high pressures

Cited by

• High-Tc state of lanthanum hydrides
• Prediction of Stable Ground-State Lithium Polyhydrides under High Pressures
• Electrical transport measurements for superconducting sulfur hydrides using boron-doped diamond electrodes on beveled diamond anvil
• The possible role of van Hove singularities in the high Tc of superconducting H3S
• High-Temperature Superconducting Phases in Cerium Superhydride with a Tc up to 115 K below a Pressure of 1 Megabar
• The electron–phonon coupling constant and the Debye temperature in polyhydrides of thorium, hexadeuteride of yttrium, and metallic hydrogen phase III
• Electron-phonon coupling mechanisms for hydrogen-rich metals at high pressure
• First-principles calculation of coherence length and penetration depth based on density functional theory for superconductors