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Conventional superconductivity at 203 kelvin at high pressures in the sulfur hydride system
S sulfur hydride is investigated, and it is argued that the phase responsible for high-Tc superconductivity in this system is likely to be H3S, formed from H2S by decomposition under pressure, which raises hope for the prospects for achieving room-temperature super conductivity in other hydrogen-based materials.
Conventional superconductivity at 190 K at high pressures
The highest critical temperature of superconductivity Tc has been achieved in cuprates: 133 K at ambient pressure and 164 K at high pressures. As the nature of superconductivity in these materials is
Observation of superconductivity in hydrogen sulfide from nuclear resonant scattering
The results demonstrate that an external static magnetic field of about 0.7 tesla is expelled from the volume of 119Sn foil as a result of the shielding by the H2S sample at temperatures between 4.7 K and approximately 140 K, revealing a superconducting state of H1S.
Crystal Structure of the Superconducting Phase of Sulfur Hydride
The crystal structure of the superconducting phase of hydrogen sulfide (and deuterium sulfide) in the normal andsuperconducting states obtained by means of synchrotron X-ray diffraction measurements, combined with electrical resistance measurements at both room and low temperatures are reported.
Conductive dense hydrogen.
A significant hysteresis indicates that the transformation of molecular hydrogen into a metal is accompanied by a first-order structural transition presumably into a monatomic liquid state.
Anomalous High‐Temperature Superconductivity in YH6
The results of superconducting density functional theory (SCDFT) and anharmonic calculations, together with anomalously high critical magnetic field, suggest notable departures of the super Conducting properties from the conventional Migdal-Eliashberg and Bardeen-Cooper-Schrieffer theories, and presence of an additional mechanism ofsuperconductivity.
Stable solid and aqueous H2CO3 from CO2 and H2O at high pressure and high temperature
It is found that, contrary to present understanding, neutral H2CO3 is a significant component in aqueous CO2 solutions above 2.4 GPa and 110 °C as identified by IR-absorption and Raman spectroscopy.
Superconductivity above 100 K in PH3 at high pressures
Following the recent discovery of very high temperature conventional superconductivity in sulfur hydride (critical temperature Tc of 203 K, Ref1) we searched for superconductivity in other hydrides