393 citations · 1.6k across the 33 of their papers we have counts for
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Large Seebeck effect in the electron-doped FeAs driven by quasi one dimensional pudding-mold type band
Hidetomo Usui, Kazuhiko Kuroki, Seiya Nakano +2
We investigate the thermoelectric propeties of the electron-doped FeAs both experimentally and theoretically. Electrons are doped by partially substituting Se for As, which lea…
First-principles band structure and FLEX approach to the pressure effect on of the cuprate superconductors
Hirofumi Sakakibara, Katsuhiro Suzuki, Hidetomo Usui +4
High-temperature cuprate superconductors have been known to exhibit significant pressure effects. In order to fathom the origin of why and how Tc is affected by pressure, we have r…
Minimum model and its theoretical analysis for superconducting materials with BiS layers
Katsuhiro Suzuki, Hidetomo Usui, Kazuhiko Kuroki
We perform first principles band calculation of the newly discovered superconductor LaOFBiS, and study the lattice structure and the fluorine doping dependence of t…
Novel BiS2-based layered superconductor Bi4O4S3
Yoshikazu Mizuguchi, Hiroshi Fujihisa, Yoshito Gotoh +7
Exotic superconductivity has often been discovered in materials with a layered (two-dimensional) crystal structure. The low dimensionality can affect the electronic structure and c…
Minimal electronic models for superconducting BiS layers
Hidetomo Usui, Katsuhiro Suzuki, Kazuhiko Kuroki
We construct minimal electronic models for a newly discovered superconductor LaOFBiS ( 10.6K) possessing BiS layers based on first principles band calcula…
Least momentum space frustration as a condition for "high sweet spot" in the iron-based superconductors
Hidetomo Usui, Katsuhiro Suzuki, Kazuhiko Kuroki
In the present paper, we describe how the band structure and the Fermi surface of the iron-based superconductors vary as the Fe-As-Fe bond angle changes. We discuss how these Fermi…
Multiorbital analysis of the effects of uniaxial and hydrostatic pressure on in the single-layered cuprate superconductors
Hirofumi Sakakibara, Katsuhiro Suzuki, Hidetomo Usui +4
The origin of uniaxial and hydrostatic pressure effects on in the single-layered cuprate superconductors is theoretically explored. A two-orbital model, derived from first pr…