S. P. Besedin
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View article: Local electronic structure rearrangements and strong anharmonicity in YH3 under pressures up to 180 GPa
Local electronic structure rearrangements and strong anharmonicity in YH3 under pressures up to 180 GPa Open
The discovery of superconductivity above 250 K at high pressure in LaH 10 and the prediction of overcoming the room temperature threshold for superconductivity in YH 10 urge for a better understanding of hydrogen interaction mechanisms wit…
View article: Superconductivity up to 243 K in yttrium hydrides under high pressure
Superconductivity up to 243 K in yttrium hydrides under high pressure Open
The discovery of high-temperature conventional superconductivity in H3S with a critical temperature of Tc=203 K was followed by the recent record of Tc ~250 K in the face-centered cubic (fcc) lanthanum hydride LaH10 compound. It was realiz…
View article: Superconductivity at 215 K in lanthanum hydride at high pressures
Superconductivity at 215 K in lanthanum hydride at high pressures Open
We synthesized lanthanum hydride (LaHx) by laser heating of lanthanum in hydrogen atmosphere at pressure P = 170 GPa. The sample shows a superconducting step at 209 K and 170 GPa and temperature dependence of resistance. By releasing the p…
View article: Nb-H system at high pressures and temperatures
Nb-H system at high pressures and temperatures Open
In this work, we studied the Nb-H system over extended pressure and temperature ranges to establish the highest level of hydrogen abundance we could achieve from the resulting alloy. We probed the Nb-H system with laser heating and x-ray d…