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Ternary superconducting hydrides in the La-Mg-H system
Grigoriy Shutov, Dmitrii Semenok, Ivan A. Kruglov +1
Ternary or more complex hydrogen-rich hydrides are the main hope of reaching room-temperature superconductivity at high pressures. Their chemical space is vast and its exploration…
Non-Fermi-Liquid Behavior of Superconducting SnH
Ivan A. Troyan, Dmitrii V. Semenok, Anna G. Ivanova +13
We studied chemical interaction of Sn with H by X-ray diffraction methods at pressures of 180-210 GPa. A previously unknown tetrahydride SnH with a cubic structure (…
Effect of paramagnetic impurities on superconductivity in polyhydrides: -wave order parameter in Nd-doped LaH
Dmitrii V. Semenok, Ivan A. Troyan, Andrey V. Sadakov +19
Polyhydrides are a novel class of superconducting materials with extremely high critical parameters, which is very promising for applications. On the other hand, complete experimen…
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…
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…
Actinium hydrides , , as high-temperature conventional superconductors
Dmitrii V. Semenok, Alexander G. Kvashnin, Ivan A. Kruglov +1
Stability of numerous unexpected actinium hydrides was predicted via evolutionary algorithm USPEX. Electron-phonon interaction was investigated for the hydrogen-richest and most sy…
Iron superhydrides FeH5 and FeH6: stability, electronic properties and superconductivity
Alexander G. Kvashnin, Ivan A. Kruglov, Dmitrii V. Semenok +1
Recently a big number of works devoted to search for new hydrides with record high-temperature superconductivity and at the same time the successful synthesis of potential high-TC…
High-Temperature Superconductivity in Th-H System at Pressure Conditions
Alexander G. Kvashnin, Dmitry V. Semenok, Ivan A. Kruglov +2
New stable thorium decahydride -, a record high-temperature superconductor with up to 241 K (), critical field up to 71T and superco…