205 citations · 679 across the 19 of their papers we have counts for
12 papers · 1 filter
Q Dependence of Magnetic Resonance Mode on FeTeSe Studied by Inelastic Neutron Scattering
Motoyuki Ishikado, Katsuaki Kodama, Ryoichi Kajimoto +6
Inelastic neutron scattering measurements have been performed on a superconducting single crystal FeTeSe to examine the -dependent enhancement of the dynam…
High-energy spin fluctuation in low- iron-based superconductor LaFePO
Motoyuki Ishikado, Shin-ichi Shamoto, Katsuaki Kodama +4
Spin fluctuations are widely believed to play an important role in the superconducting mechanisms of unconventional high-temperature superconductors. Spin fluctuations have been ob…
Superconductivity in Noncentrosymmetric Iridium Silicide Li2IrSi3
S. Pyon, K. Kudo, J. Matsumura +9
The effects of lithium absorption on the crystal structure and electronic properties of IrSi3, a binary silicide with a noncentrosymmetric crystal structure, were studied. X-ray an…
Hydrogen in layered iron arsenide: indirect electron doping to induce superconductivity
Taku Hanna, Yoshinori Muraba, Satoru Matsuishi +3
Utilizing the high stability of calcium and rare earth hydrides, CaFeAsF1-xHx (x = 0.0-1.0) and SmFeAsO1-xHx (x = 0.0-0.47) have been first synthesized using high pressure to form…
Crystal and magnetic structure of the superconductor CeNiBi
K. Kodama, S. Wakimoto, N. Igawa +3
We have performed powder neutron diffraction on the new superconductor, CeNiBi with a superconducting transtion temperature 4.2 K. The structural pa…
Structural Analysis on Iron-Based Superconductor Pr1111 System with Oxygen Deficiency and Flourine Substitution
Katsuaki Kodama, Motoyuki Ishikado, Fumitaka Esaka +3
We have performed structural analyses on iron-based superconductors, PrFeAsO and PrFeAsOF, systematically, by means of Rietveld method on neutron powder diffrac…
Strong spin resonance on BaFe2(As0.65P0.35)2 with Tc = 30 K
M. Ishikado, Y. Nagai, K. Kodama +13
We performed inelastic neutron scattering on powder sample of the P-doped iron-based superconductor BaFe2(As0.65P0.35)2 with Tc = 30K, whose superconducting (SC) order parameter is…
Nodeless two-gap superconductivity in stoichiometric iron pnictide LiFeAs
H. Kim, M. A. Tanatar, Yoo Jang Song +2
The variations of in- and inter- plane London penetration depths, , were measured using a tunnel diode resonator in single crystals of the intrinsic pnictide superconductor…
Inelastic neutron scattering study on the resonance mode in an optimally doped superconductor LaFeAsOF
S. Shamoto, M. Ishikado, A. D. Christianson +5
An optimally doped iron-based superconductor LaFeAsOF with K has been studied by inelastic powder neutron scattering. The magnetic excitation at $Q=1.1…
Degradation of superconductivity and spin fluctuations by electron over-doping in LaFeAsOF
S. Wakimoto, K. Kodama, M. Ishikado +9
Low energy spin fluctuations are studied for the electron-doped Fe-based superconductor LaFeAsO(1-x)F(x) by inelastic neutron scattering up to the energy transfer of w = 15 meV usi…
39K and 87Rb Nuclear Magnetic Resonance in the Pyrochlore Superconductors AOs2O6 (A=K, Rb)
K. Arai, J. Kikuchi, K. Kodama +4
This paper has been withdrawn by the authors, since a crucial assumption in the analysis of the data was found to be incorrect from the later experiments.
Magnetic and superconducting properties of Cd2Re2O7: Cd NMR and Re NQR
O. Vyaselev, K. Arai, K. Kobayashi +5
We report Cd NMR and Re NQR studies on Cd2Re2O7, the first superconductor among pyrochlore oxides Tc=1 K. Re NQR spectrum at zero magnetic field below 100 K rules out any magnetic…