175 citations · 349 across the 17 of their papers we have counts for
12 papers · 1 filter
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…
Assessing the possible superconductivity in doped perovskite hydride KMgH: Effects of lattice anharmonicity and spin fluctuations
Shaocong Lu, Ryosuke Akashi, Mitsuaki Kawamura +1
The superconducting properties of uniformly hole-doped perovskite hydride KMgH with varying doping concentration and lattice parameter corresponding to different pressures were…
Revisiting the homogeneous electron gas in pursuit of the properly normed ab initio Eliashberg theory
Ryosuke Akashi
We address an issue of how to accurately include the self energy effect of the screened electron-electron Coulomb interaction in the phonon-mediated superconductors from first prin…
Chemical physics of superconductivity in layered yttrium carbide halides from first principles
Ryosuke Akashi, Ryotaro Arita, Chao Zhang +2
We perform a thorough first-principles study on superconductivity in yttrium carbide halide YC (=Cl, Br, I) whose maximum transition temperature () amoun…
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…