6 papers
Superconductivity at 253 K in lanthanum-yttrium ternary hydrides
Dmitrii V. Semenok, Ivan A. Troyan, Alexander G. Kvashnin +14
Polyhydrides offer intriguing perspectives as high-temperature superconductors. Here we report the high-pressure synthesis of a series of lanthanum-yttrium ternary hydrides: cubic…
High-Pressure Synthesis of Barium Superhydrides: Pseudocubic BaH12
Wuhao Chen, Dmitrii V. Semenok, Alexander G. Kvashnin +9
Following the discovery of high-temperature superconductivity in the La-H system, where for the recently discovered fcc-LaH10 a record critical temperature Tc = 250 K was achieved…
High-Pressure Synthesis of Magnetic Neodymium Polyhydrides
Di Zhou, Dmitrii V. Semenok, Hui Xie +9
The current search for room-temperature superconductivity is inspired by the unique properties of the electron-phonon interaction in metal superhydrides. Encouraged by the recently…
Superconductivity and Equation of State of Distorted fcc-Lanthanum above Megabar Pressures
Wuhao Chen, Dmitrii V. Semenok, Ivan A. Troyan +4
Lanthanum (La) is the first member of the rare-earth series of elements that has recently raised considerable interest because of its unique high-Tc superhydride LaH10. Although se…
Superconductivity of and polyhydrides
Ivan A. Kruglov, Dmitrii V. Semenok, Hao Song +8
We explore high-pressure phase stability and superconductivity of lanthanum hydrides (m=4-11,16). We predict stability of a hitherto unreported polyhydride -$LaH_{1…
On Distribution of Superconductivity in Metal Hydrides
Dmitrii V. Semenok, Ivan A. Kruglov, Igor A. Savkin +2
Using the data on the superconducting critical temperature () for a number of metal hydrides, we found a rule that makes it possible to predict the maximum based onl…