473 citations · 1.8k across the 26 of their papers we have counts for
26 papers
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…
Radio-Frequency Gasket for Studies of Superconductivity in Diamond Anvil Cells
Dmitrii V. Semenok, Di Zhou, Viktor V. Struzhkin
This work presents the development and testing of a novel radio-frequency (RF) gasket with a Lenz lens surface geometry for contactless measurements in diamond anvil cells (DACs).…
Interlayer coupling enhanced superconductivity near 100 K in LaNdNiO
Zhengyang Qiu, Junfeng Chen, Dmitrii V. Semenok +12
Systematically controlling the superconducting transition temperature () in the bilayer Ruddlesden-Popper nickelate LaNiO remains a significant challenge. H…
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…
Radio-Frequency Method for Detecting Superconductivity Under High Pressure
Dmitrii V. Semenok, Di Zhou, Jianbo Zhang +5
We introduce a contactless technique for probing superconductivity and magnetic ordering transitions in micron-sized samples under extreme pressure. Utilizing a multistage Lenz len…
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…
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…
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…
Computational design of new superconducting materials and their targeted experimental synthesis
Dmitrii Semenok
In the last six years (2015-2021), many superconducting hydrides with critical temperatures of up to 253 K, a record for today, have been discovered. Now, a specia…
Large negative magnetoresistance and pseudogap phase in superconducting A15-type LaH
Jianning Guo, Dmitrii Semenok, Grigoriy Shutov +7
High pressure plays a crucial role in the field of superconductivity. Compressed hydride superconductors are leaders in the race for a material that can conduct electricity without…
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…
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…
Sr-Doped Molecular Hydrogen: Synthesis and Properties of SrH
Dmitrii V. Semenok, Wuhao Chen, Xiaoli Huang +9
Recently, several research groups announced reaching the point of metallization of hydrogen above 400 GPa. Following the mainstream of extensive investigations of compressed polyhy…
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…
Anomalous high-temperature superconductivity in YH
Ivan A. Troyan, Dmitrii V. Semenok, Alexander G. Kvashnin +16
Pressure-stabilized hydrides are a new rapidly growing class of high-temperature superconductors which is believed to be described within the conventional phonon-mediated mechanism…
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…