65 citations · 101 across the 5 of their papers we have counts for
5 papers
Localized-to-itinerant transition preceding antiferromagnetic quantum critical point and gapless superconductivity in CeRhIrIn
Shinji Kawasaki, Toshihide Oka, Akira Sorime +9
A fundamental problem posed from the study of correlated electron compounds, of which heavy-fermion systems are prototypes, is the need to understand the physics of states near a q…
Structural Phase Transition, Antiferromagnetism and Two Superconducting Domes in LaFeAsOF (0 0.75)
J. Yang, T. Oka, Z. Li +4
We report As nuclear magnetic resonance (NMR) / nuclear quadrupole resonance (NQR) and transmission electron microscopy (TEM) studies on LaFeAsOF. There are tw…
Antiferromagnetic Spin Fluctuation above the Superconducting Dome and the Full-Gaps Superconducting State in LaFeAsO1-xFx Revealed by 75As-Nuclear Quadrupole Resonance
T. Oka, Z. Li, S. Kawasaki +3
We report a systematic study by 75As nuclear-quadrupole resonance in LaFeAsO1-xFx. The antiferromagnetic spin fluctuation (AFSF) found above the magnetic ordering temperature TN =…
Multiple superconducting gap and anisotropic spin fluctuations in iron arsenides: Comparison with nickel analog
Z. Li, S. Kawasaki, T. Oka +12
We present extensive 75As NMR and NQR data on the superconducting arsenides PrFeAs0.89F0.11 (Tc=45 K), LaFeAsO0.92F0.08 (Tc=27 K), LiFeAs (Tc = 17 K) and Ba0.72K0.28Fe2As2 (Tc = 31…
Evidence for a full energy gap for nickel-pnictide LaNiAsO_{1-x}F_x superconductors by ^{75}As nuclear quadrupole resonance
T. Tabuchi, Z. Li, G. F. Chen +4
We report systematic ^{75}As-NQR and ^{139}La-NMR studies on nickel-pnictide superconductors LaNiAsO_{1-x}F_x (x=0, 0.06, 0.10 and 0.12). The spin lattice relaxation rate 1/T_1 dec…