290 citations · 1.6k across the 46 of their papers we have counts for
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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…
Coexistence of spontaneous polarization and superconductivity in hole-doped oxyhydrides ATiO_2H (A=K, Rb, Cs): first-principles study
Minjae Ghim, Nobuya Sato, Ryosuke Akashi +2
The polar metal is a material that hosts both polar distortion and metallicity. Such a material is expected to show exotic magneto-electric phenomena if superconducts. Here, we the…
First Principles Study of the Optical Dipole Trap for Two-Dimensional Excitons in Graphane
Hiroki Katow, Ryosuke Akashi, Yoshiyuki Miyamoto +1
Recent studies on excitons in two-dimensional materials have been widely conducted for their potential usages for novel electronic and optical devices. Especially, sophisticated ma…
Effect of spin fluctuations on superconductivity in V and Nb: a first-principles study
Kentaro Tsutsumi, Yuma Hizume, Mitsuaki Kawamura +2
We study the superconductivity in typical -band elemental superconductors V and Nb with the recently developed non-empirical computational scheme based on the density functional…
Defining a well-ordered Floquet basis by the average energy
Cristian M. Le, Ryosuke Akashi, Shinji Tsuneyuki
At the moment, the most efficient method to compute the state of a periodically driven quantum system is using Floquet theory and the Floquet eigenbasis. The wide application of th…
Spintronic superconductor in a bulk layered material with natural spin-valve structure
Shunsuke Sakuragi, S. Sasaki, R. Akashi +29
Multi-layered materials provide fascinating platforms to realize various functional properties, possibly leading to future electronic devices controlled by external fields. In part…