148 citations · 534 across the 25 of their papers we have counts for
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Observation of multigap and coherence peak in the noncentrosymmetric superconductor CaPtAs: As nuclear quadrupole resonance measurement
Yuya Nagase, Masahiro Manago, Junichi Hayashi +6
We present synthesis and As-nuclear quadrupole resonance (NQR) measurements for the noncentrosymmetric superconductor CaPtAs with a superconducting transition temperature $T…
Magnetic correlations in the pressure-induced superconductor CrAs investigated by As nuclear magnetic resonance
Kei Matsushima, Hisashi Kotegawa, Yoshiki Kuwata +7
We report As-NMR results for CrAs under pressure, which shows superconductivity adjoining a helimagnetically ordered state. We successfully evaluated the Knight shift from t…
Quasilinear quantum magnetoresistance in pressure-induced nonsymmorphic superconductor CrAs
Q. Niu, W. C. Yu, K. Y. Yip +7
In conventional metals, modification of electron trajectories under magnetic field gives rise to a magnetoresistance that varies quadratically at low field, followed by a saturatio…
NMR Investigation of the iron-based superconductors Ca4(Mg,Ti)3Fe2As2O8-y and Ca5(Sc,Ti)4Fe2As2O11-y
Y. Tomita, H. Kotegawa, Y. Tao +5
As and Sc NMR measurements unravel the electronic state for Fe-based superconductors with perovskite-type blocking layers Ca(Mg,Ti)FeAsO ($T_c…
Pressure Study of BiS2-Based Superconductors Bi4O4S3 and La(O,F)BiS2
Hisashi Kotegawa, Yusuke Tomita, Hideki Tou +6
We report the electrical resistivity measurements under pressure for the recently discovered BiS2-based layered superconductors Bi4O4S3 and La(O,F)BiS2. In Bi4O4S3, the transition…
Possible Superconducting Symmetry and Magnetic Correlations in K0.8Fe2Se2: A 77Se-NMR Study
Hisashi Kotegawa, Yudai Hara, Hiroki Nohara +4
We report ^77Se-NMR measurements in the recent discovered K_0.8Fe_2Se_2 with the superconducting transition temperature T_c=32 K. The characteristic point of this system is that th…