Zobrazeno 1 - 10
of 150
pro vyhledávání: '"Kitaoka, Yoshio"'
Autor:
Mukuda, Hidekazu, Shiki, Nozomu, Kimoto, Naoki, Yashima, Mitsuharu, Kitaoka, Yoshio, Tokiwa, Kazuyasu, Iyo, Akira
We report $^{63}$Cu- and $^{205}$Tl-NMR studies on six-layered ($n$=6) high-$T_c$ superconducting (SC) cuprate TlBa$_2$Ca$_5$Cu$_6$O$_{14+\delta}$ (Tl1256) with $T_c\sim$100 K, which reveal that antiferromagnetic (AFM) order takes place below $T_{\rm
Externí odkaz:
http://arxiv.org/abs/1606.08147
Autor:
Kotegawa, Hisashi, Fukumoto, Kenta, Toyama, Toshihiro, Tou, Hideki, Harima, Hisatomo, Harada, Atsushi, Kitaoka, Yoshio, Haga, Yoshinori, Yamamoto, Etsuji, Onuki, Yoshichika, Itoh, Kohei M., Haller, Eugene E.
We report 73Ge-NMR and NQR results for ferromagnetic (FM) superconductor URhGe. The magnitude and direction of the internal field, H_int, and parameters of the electric field gradient at the Ge site were determined experimentally. Using powdered poly
Externí odkaz:
http://arxiv.org/abs/1503.04520
Autor:
Yamamoto, Keisuke, Mukuda, Hidekazu, Kinouchi, Hiroaki, Yashima, Mitsuharu, Kitaoka, Yoshio, Yogi, Mamoru, Sato, Shinya, Ogino, Hiraku, Shimoyama, Jun-ichi
Publikováno v:
J. .Phys. Soc. Jpn 81 (2012) 053702/1-4
We report an 75As-NMR study on iron (Fe)-based superconductors with thick perovskitetype blocking layers Sr4(Mg0.5-xTi0.5+x)2O6Fe2As2 with x=0 and 0.2. We have found that antiferromagnetic (AFM) order takes place when x=0, and superconductivity (SC)
Externí odkaz:
http://arxiv.org/abs/1203.4190
Autor:
Shimizu, Sunao, Tabata, Shin-ichiro, Iwai, Shiho, Mukuda, Hidekazu, Kitaoka, Yoshio, Shirage, Parasharam M., Kito, Hijiri, Iyo, Akira
Publikováno v:
Physical Review B 85, 024528 (2012) [selected as Editors' Suggestion]
We report systematic Cu- and F-NMR measurements of five-layered high-Tc cuprates Ba2Ca4Cu5O10(F,O)2. It is revealed that antiferromagnetism (AFM) uniformly coexists with superconductivity (SC) in underdoped regions, and that the critical hole density
Externí odkaz:
http://arxiv.org/abs/1201.1430
Autor:
Shimizu, Sunao, Tabata, Shin-ichiro, Mukuda, Hidekazu, Kitaoka, Yoshio, Shirage, Parasharam M., Kito, Hijiri, Iyo, Akira
Publikováno v:
Phys. Rev. B 83, 214514 (2011) [7 pages]. [selected as Editors' Suggestion]
We report on the phase diagram of antiferromagnetism (AFM) and superconductivity (SC) in three-layered Ba_2Ca_2Cu_3O_6(F,O)_2 by means of Cu-NMR measurements. It is demonstrated that AFM and SC uniformly coexist in three-layered compounds as well as
Externí odkaz:
http://arxiv.org/abs/1105.5168
Autor:
Shimizu, Sunao, Iwai, Shiho, Tabata, Shin-ichiro, Mukuda, Hidekazu, Kitaoka, Yoshio, Shirage, Parasharam M., Kito, Hijiri, Iyo, Akira
Publikováno v:
Phys. Rev. B 83, 144523 (2011) [6 pages]
We report that planar CuO_2 hole densities in high-T_c cuprates are consistently determined by the Cu-NMR Knight shift. In single- and bi-layered cuprates, it is demonstrated that the spin part of the Knight shift K_s(300 K) at room temperature monot
Externí odkaz:
http://arxiv.org/abs/1103.3407
Autor:
Kitaoka, Yoshio, Mukuda, Hidekazu, Shimizu, Sunao, Tabata, Shin-ichiro, Shirage, Parasharam M., Iyo, Akira
We reexamine the novel phase diagrams of antiferromagnetism (AFM) and high-Tc$ superconductivity (HTSC) for a disorder-free CuO$_2$ plane based on an evaluation of local hole density ($p$) by site-selective Cu-NMR studies on multilayered copper oxide
Externí odkaz:
http://arxiv.org/abs/1101.3928
Extensive Cu-NMR studies on multilayered high-Tc cuprates have deduced the following results;(1) Antiferromagnetic (AFM) moment M_{AFM} is decreased with doping, regardless of the number of CuO_2 layers n, and collapses around a carrier density N_h =
Externí odkaz:
http://arxiv.org/abs/0902.1381
Autor:
Mukuda, Hidekazu, Abe, Machiko, Shimizu, Sunao, Kitaoka, Yoshio, Iyo, Akira, Kodama, Yasuharu, Kito, Hijiri, Tanaka, Yasutomo, Tokiwa, Kazuyasu, Watanabe, Tsuneo
Publikováno v:
J. Phys. Soc. Jpn. 75, 123702 (2006)
We report on superconducting(SC) characteristics for oxygen-reduced Cu-based five-layered high-temperature superconductor (Cu,C)Ba2Ca4Cu5Oy(Cu-1245(OPT)), which includes five-fold outer planes (OP) and four-fold inner planes (IP).As a result of the r
Externí odkaz:
http://arxiv.org/abs/cond-mat/0610133
Autor:
Mukuda, Hidekazu, Kitaoka, Yoshio, Ishiwata, Shintaro, Saito, Takashi, Shimakawa, Yuichi, Harima, Hisatomo, Takano, Mikio
Publikováno v:
J. Phys. Soc. Jpn., 75, 094715/1-5, (2006)
We report on novel magnetic and electronic properties of SrCo6O11 that exhibits a unique stepwise magnetization and its relevant magnetotransport phenomena investigated by the site-selective 59Co nuclear magnetic resonance (NMR) at zero and applied m
Externí odkaz:
http://arxiv.org/abs/cond-mat/0607677