324 citations · 975 across the 22 of their papers we have counts for
22 papers
Yttrium Superhydrides Revisited: Advanced Experimental and Theoretical Studies of YH, YH and YH
Dmitrii V. Semenok, Pedro N. Ferreira, Di Zhou +10
Yttrium polyhydrides are benchmark materials in high-pressure superconductivity, yet several key properties of the Y-H system remain insufficiently characterized. Here we combine c…
Stability Analysis of Superconductivity in -LaScH and its Experimental Reproducibility from La-Sc Alloys
Dmitrii V. Semenok, Ivan A. Troyan, Zhongyan Wu +4
In this work, we analyze the feasibility of room-temperature superconductivity in the lanthanum-scandium hydride -LaScH. We demonstrate that the electro…
Superhydrides on the way to ambient pressure: weak localization and persistent X-ray photoconductivity in BaSiH
Dmitrii V. Semenok, Di Zhou, Sven Luther +15
Reducing the stabilization pressure of superhydrides represents one of the most important challenges in hydrogen-saturated compound chemistry. Moving in this direction, we studied…
Stability and Superconductivity of Ternary Polyhydrides
Dmitrii V. Semenok, Di Zhou, Wuhao Chen +8
We review five years of experimental and theoretical attempts (2020-2025) to enhance the superconducting critical temperature ($\textit{T$_c$}$) of hydrogen-rich compounds by alloy…
Superconducting gap in covalent bismuth dihydride BiH under extreme conditions
Jianning Guo, Dmitrii V. Semenok, Ivan A. Troyan +17
Hydride superconductors at megabar pressures provide a promising platform for exploring room-temperature superconductivity. However, their superconducting gaps remain largely inacc…
Transmission of radio-frequency waves and nuclear magnetic resonance in lanthanum superhydrides
Dmitrii V. Semenok, Florian Bärtl, Di Zhou +6
The discovery of near-room temperature superconductivity in the lanthanum hydride LaH has revolutionized this field of research. However, the need to use diamond anvils for…
Superconducting memory and trapped magnetic flux in ternary lanthanum polyhydrides
Dmitrii V. Semenok, Andrei V. Sadakov, Di Zhou +6
Superconducting memory is a promising technology for data storage because of its speed, high energy efficiency, non-volatility, and compatibility with quantum computing devices. Ho…
Ternary superhydrides under pressure of Anderson's theorem: Near-record superconductivity in (La,Sc)H
Dmitrii V. Semenok, Ivan A. Troyan, Di Zhou +12
Lanthanum-hydrogen system and its derivatives remain among the most promising for achieving room-temperature superconductivity. In this study, we examined the formation of ternary…
Observation of the Josephson effect in superhydrides: DC SQUID based on (La,Ce)H with operating temperature of 179 K
Dmitrii V. Semenok, Ivan A. Troyan, Di Zhou +3
Among known materials, hydride superconductors have the highest critical temperatures and are very promising as a basis for electronic sensors. Superconducting quantum interference…
Raisins in a Hydrogen Pie: Ultrastable Cesium and Rubidium Polyhydrides
Di Zhou, Dmitrii V. Semenok, Michele Galasso +6
We proposed a new method for synthesis of metal polyhydrides via high-pressure thermal decomposition of corresponding amidoboranes in diamond anvil cells. Within this approach, we…
Quasi Two-dimensional Vortex Matter in ThH Superhydride
Andrey V. Sadakov, Vladimir A. Vlasenko, Dmitrii V. Semenok +4
A comprehensive study of the vortex phases and vortex dynamics is presented for a recently discovered high-temperature superconductor ThH with = 153 K at 17…
Evidence for Pseudogap Phase in Cerium Superhydrides: CeH and CeH
Dmitrii Semenok, Jianning Guo, Di Zhou +9
Polyhydride superconductors have been shown to possess metallic properties with a Bardeen-Cooper-Schrieffer-type superconducting ground state. Here, we provide evidence for unconve…
Vortex phase dynamics in yttrium superhydride YH at megabar pressures
A. V. Sadakov, V. A. Vlasenko, I. A. Troyan +4
A comprehensive study of the vortex phases and vortex dynamics is presented for a recently discovered high-temperature superconductor YH with T (onset) of 215 K under press…
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 (…
Synthesis of technetium hydride TcH at 27 GPa
D. Zhou, D. V. Semenok, M. A. Volkov +7
In this work, we synthesize and investigate lower technetium hydrides at pressures up to 45 GPa using the synchrotron X-ray diffraction, reflectance spectroscopy, and ab initio cal…
High-temperature superconductivity in hydrides
I. A. Troyan, D. V. Semenok, A. G. Ivanova +7
Over the past six years (2015-2021), many superconducting hydrides with critical temperatures up to 250 K, which are currently record highs, have been discovered. Now we ca…
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…
Novel Strongly Correlated Europium Superhydrides
Dmitrii V. Semenok, Di Zhou, Alexander G. Kvashnin +11
We conducted a joint experimental-theoretical investigation of the high-pressure chemistry of europium polyhydrides at pressures of 86-130 GPa. We discovered several novel magnetic…
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…
Crystal structure and phase transitions at high pressures in the superconductor FeSe0.89S0.11
Yulia A. Nikiforova, Anna G. Ivanova, Kirill V. Frolov +8
We report on the structural phase transitions in the S doped FeSe superconductor by powder synchrotron X ray diffraction at high pressures up to 18.5 GPa under compression and deco…
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 at 161 K in Thorium Hydride : Synthesis and Properties
Dmitrii V. Semenok, Alexander G. Kvashnin, Anna G. Ivanova +7
Here we report targeted high-pressure synthesis of two novel high- hydride superconductors, - and -, with the experimental critical temp…