Search Results - "Kotegawa, H."

Quasilinear quantum magnetoresistance in pressure-induced nonsymmorphic superconductor chromium arsenide by Niu, Q., Yu, W. C., Yip, K. Y., Lim, Z. L., Kotegawa, H., Matsuoka, E., Sugawara, H., Tou, H., Yanase, Y., Goh, Swee K.

“…In conventional metals, modification of electron trajectories under magnetic field gives rise to a magnetoresistance that varies quadratically at low field,…”
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Nonsaturating large magnetoresistance in the high carrier density nonsymmorphic metal CrP by Niu, Q., Yu, W., Aulestia, E., Hu, Y., Lai, Kwing To, Kotegawa, H., Matsuoka, E., Sugawara, H., Tou, H., Sun, D., Balakirev, F., Yanase, Y., Goh, Swee

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Evidence for strong-coupling s-wave superconductivity in MgB2: (11)B NMR Study by Kotegawa, H, Ishida, K, Kitaoka, Y, Muranaka, T, Akimitsu, J

“…We have investigated a gap structure in a newly discovered superconductor, MgB2, through measurement of the (11)B nuclear spin-lattice relaxation rate,…”
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NMR spectrum analysis for CrAs at ambient pressure by Kotegawa, H., Nakahara, S., Matsushima, K., Tou, H., Matsuoka, E., Sugawara, H., Harima, H.

“…We report NMR spectrum analysis for CrAs, which was recently reported to be superconducting under pressure. The NMR spectrum obtained by the powdered single…”
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Evidence for unconventional strong-coupling superconductivity in PrOs4Sb12: an Sb nuclear quadrupole resonance study by Kotegawa, H, Yogi, M, Imamura, Y, Kawasaki, Y, Zheng, G-Q, Kitaoka, Y, Ohsaki, S, Sugawara, H, Aoki, Y, Sato, H

“…We report Sb-NQR results which evidence a heavy-fermion (HF) behavior and an unconventional superconducting (SC) property in Pr(Os4Sb12 with T(c)=1.85 K. The…”
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New superconducting and magnetic phases emerge on the magnetic criticality in CeIn3 by KAWASAKI, S, MITO, T, KAWASAKI, Y, KOTEGAWA, H, ZHENG, G.-Q, KITAOKA, Y, SHISHIDO, H, ARAKI, S, SETTAI, R, ÖNUKI, Y

“…We report the discovery of new superconducting and novel magnetic phases in CeIn3 on the verge of antiferromagnetism (AFM) under pressure (P) through the…”
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77Se-NMR study of Co-substituted FeSe by Kotegawa, H., Hara, Y., Masaki, S., Tou, H., Mizuguchi, Y., Takano, Y.

“…We report 77Se-NMR measurements in Co-substituted FeSe, (Fe0.9Co0.1)Se, which is non-superconducting. Nuclear-spin lattice relaxation rate 1/T1 at high…”
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15N NMR studies of layered nitride superconductor LixZrNCl by Tou, H., Oshiro, S., Kotegawa, H., Taguchi, Y., Kishiume, Y., Kasahara, Y., Iwasa, Y.

“…NMR measurements were carried out on pristine ZrNCl and LixZrNCl. From the 15N-Knight shift study, the isotropic Knight shift, the traceless chemical (orbital)…”
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NMR study of carrier distribution and superconductivity in multilayered high- Tc cuprates by Kotegawa, H, Tokunaga, Y, Ishida, K, Zheng, G.-q, Kitaoka, Y, Asayama, K, Kito, H, Iyo, A, Ihara, H, Tanaka, K, Tokiwa, K, Watanabe, T

“…We report 63Cu-Knight shift measurement on multilayered high- T c cuprate oxides that include inequivalent outer (OP) and inner (IP) CuO 2 planes in a unit…”
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Observation of charge fluctuations in skutterudite compounds through an Sb-NQR measurement by Kotegawa, H., Irie, Y., Hidaka, H., Kobayashi, T.C., Kikuchi, D., Sugawara, H., Sato, H.

“…We report that the nuclear spin–spin relaxation rate 1 / T 2 shows characteristic peaks in the skutterudite compounds of ROs 4 Sb 12 ( R = La , Pr, Nd, and Sm)…”
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Pressure-induced superconductivity in ferromagnet UIr without inversion symmetry by Kobayashi, T.C., Fukushima, S., Hidaka, H., Kotegawa, H., Akazawa, T., Yamamoto, E., Haga, Y., Settai, R., Onuki, Y.

“…High-pressure AC-susceptibility measurement has been carried out in UIr. Three series of peaks corresponding to the successive ferromagnetic transitions…”
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Anisotropic behavior in resistivity of RAgSb2 ( R = Ce, La ) by WATANABE, Y, INADA, Y, HIDAKA, H, KOTEGAWA, H, KOBAYASHI, T. C, MATSUDA, T. D, AOKI, D

“…CeAgSb2 crystallizes in the tetragonal ZrCuSi2 type structure (P4/nmm), which consists of Sb-Ce, Sb-Ag-Ce, Sb-Sb layers. It shows the peculiar anisotropic…”
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Uniform mixing of high-Tc superconductivity and antiferromagnetism on a single CuO2 plane in five-layered cuprates by Mukuda, H., Abe, M., Kitaoka, Y., Kotegawa, H., Tokiwa, K., Watanabe, T., Iyo, A., Kito, H., Tanaka, Y., Kodama, Y.

“…We report systematic Cu-NMR studies on five-layered cuprates from under-doped HgBa2Ca4Cu5O12+δ (Hg-1245(UD)) to slightly overdoped Tl-1245(OVD), and compare…”
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Evolution of transport and low-energy spin fluctuations in YbXCu4(X = Au and Pd) with the application of magnetic field by YAMAMOTO, A, YOKOYAMA, T, WADA, S, TABIRA, K, KOTEGAWA, H, KOBAYASHI, T. C, SARRAO, J. L

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Evolution of transport and low-energy spin fluctuations in with the application of magnetic field by Yamamoto, A., Yokoyama, T., Wada, S., Tabira, K., Kotegawa, H., Kobayashi, T.C., Sarrao, J.L.

“…We have investigated evolution of transport and low-energy spin fluctuation properties of heavy Fermi liquid compounds YbAuCu4 and YbPdCu4 with the application…”
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High-quality single crystal growth and physical properties in a ferromagnet UIr by Yamamoto, E., Haga, Y., Ikeda, S., Matsuda, T.D., Akazawa, T., Kotegawa, H., Kobayashi, T.C., Ōnuki, Y.

“…UIr crystallizes in the monoclinic crystal structure without inversion symmetry. The magnetization measurement indicated that UIr is an Ising-type ferromagnet…”
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Sb-NQR study of the “Kondo semiconductor” CeOs4Sb12 by Yogi, M, Kotegawa, H, Zheng, G.-q, Kitaoka, Y, Osaki, S, Sugawara, H, Sato, H

“…We report novel phase transition at ∼0.9K in the Ce-based filled-skutterudite compound CeOs4Sb12 via the measurements of nuclear-spin-lattice-relaxation-rate…”
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NMR/NQR experiments on heavy-fermion systems and superconductors by Kitaoka, Y., Kawasaki, S., Kawasaki, Y., Kotegawa, H., Mito, T.

“…We review the current NMR/NQR studies on superconducting and magnetic phases close to the magnetic instability under pressure ( P) in heavy-fermion (HF)…”
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Pressure-induced charge ordering of LiV2O4 by Takeda, K, Hidaka, H, Kotegawa, H, Kobayashi, T C, Shimizu, K, Harima, H, Fujiwara, K, Miyoshi, K, Takeuchi, J, Ohishi, Y, Adachi, T, Takata, M, Nishibori, E, Sakata, M, Watanuki, T, Shimomura, O

“…The powder X-ray diffraction experiments of LiV2O4 have been performed at low temperature and high pressure using synchrotron radiation. In the isothermal…”
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Pressure-induced superconductivity in UIr without inversion symmetry by Akazawa, T., Hidaka, H., Kotegawa, H., Kobayashi, T.C., Fujiwara, T., Yamamoto, E., Haga, Y., Settai, R., Ōnuki, Y.

“…Pressure-induced superconductivity is found in UIr without inversion symmetry. The pressure–temperature phase diagram has been investigated by means of…”
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