231 citations · 758 across the 22 of their papers we have counts for
5 papers · 2 filters
Controlling Factors of Tc-Dome Structure in 1111-Type Iron Arsenide Superconductors
Satoru Matsuishi, Takuya Maruyama, Soshi Iimura +1
We investigated the effects of phosphorus substitution on the shape of the Tc(x) dome in 1111-type SmFeAs1-yPyO1-xHx (0 < x < 0.5). Hydride ion substitution of oxide sites (O2- ->…
Model of the Electronic Structure of Electron-Doped Iron-Based Superconductors: Evidence for Enhanced Spin Fluctuations by Diagonal Electron Hopping
Katsuhiro Suzuki, Hidetomo Usui, Soshi Iimura +4
We present a theoretical understanding of the superconducting phase diagram of the electron-doped iron pnictides. We show that, besides the Fermi surface nesting, a peculiar motion…
Detection of antiferromagnetic ordering in heavily doped LaFeAsO1-xHx pnictide superconductors using nuclear-magnetic-resonance techniques
N. Fujiwara, S. Tsutsumi, S. Iimura +4
We studied double superconducting (SC) domes in LaFeAsO1-xHx by using 75As- and 1H-nuclear magnetic resonance techniques, and unexpectedly discovered that a new antiferromagnetic (…
Switching of intra-orbital spin excitations in electron-doped iron pnictide superconductors
Soshi Iimura, Satoru Matsuishi, Masashi Miyakawa +10
We investigate the doping dependence of the magnetic excitations in two-superconducting-dome-system LaFeAsO1-xDx. Using inelastic neutron scattering, spin fluctuations at different…
Robust spin fluctuations and pairing in the heavily electron doped iron-based superconductors
Katsuhiro Suzuki, Hidetomo Usui, Kazuhiko Kuroki +4
We theoretically study the spin fluctuation and superconductivity in La1111 and Sm1111 iron-based superconductors for a wide range of electron doping. When we take into account the…