Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Yasuharu Kodama"'
Autor:
Iyo, Akira, Tanaka, Yasumoto, Kito, Hijiri, Yasuharu, Kodama, Matsuhata, Hirofumi, Tokiwa, Kazuyasu, Watanabe, Tsuneo
Publikováno v:
In Physica C: Superconductivity and its applications 1 September 2007 460-462 Part 1:436-437
Autor:
Guo-Qing Zheng, William Moulton, Yoshimi Kubo, Arneil Reyes, Yuichi Shimakawa, T. Kondo, H. Ozaki, Yasuo Kitaoka, Philip L. Kuhns, Yasuharu Kodama, W. G. Clark
Publikováno v:
ResearcherID
We find contrastive response of the pseudogap (PG) to high magnetic fields up to 28.5 T based on 63 Cu NMR measurements. In the slightly overdoped TlSr 2 CaCu 2 O 6.8 , the PG is strongly field dependent and shown to be due to the superconducting flu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::155159e01dddc4d32794d762c38821c8
https://doi.org/10.1016/s0921-4534(01)00820-6
https://doi.org/10.1016/s0921-4534(01)00820-6
Autor:
P. L. Kuhns, Yasuharu Kodama, W. G. Clark, Guo-Qing Zheng, Yasuo Kitaoka, William Moulton, Kunisuke Asayama
Publikováno v:
Physical Review B. 60:R9947-R9950
The responses to the magnetic field (H) of the pseudogap and the superconductivity in the underdoped high-${T}_{c}$ cuprate ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{4}{\mathrm{O}}_{8} {(T}_{c}=74 \mathrm{K})$ are reported up to 23.2 T based on NMR measureme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6058afdff770ce0070f064da16438ed
https://doi.org/10.1103/physrevb.60.r9947
https://doi.org/10.1103/physrevb.60.r9947
Autor:
Takehiko Matsumoto, Izumi Hirabayashi, Y. Yamada, S. Morii, Y. Funahashi, Hiroshi Ikuta, Shigeru Horii, Uichiro Mizutani, Yasuharu Kodama, Akiyuki Matsushita, Nobuyoshi Yamada, Susumu Katano
Publikováno v:
Physica C: Superconductivity. 302:10-22
Both (Y1−xPrx)Ba2Cu4O8 (hereafter abbreviated as Y/Pr124) and (Y1−xPrx)2Ba4Cu7O15−y (Y/Pr247) compounds were successfully synthesized over the whole concentration range 0≤x≤1 by means of either hot isostatic pressing (HIP) technique or high
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::080c9af5d4dd2c5a1c5cd2752ae4673b
https://doi.org/10.1016/s0921-4534(98)00157-9
https://doi.org/10.1016/s0921-4534(98)00157-9
Autor:
Kunisuke Asayama, T. Odaguchi, Guo-Qing Zheng, K. Mizuhashi, S. Uchida, Yasuo Kitaoka, Yasuharu Kodama
Publikováno v:
Physica C: Superconductivity. 263:367-370
The existence of local moments in both Zn- and Ni-doped YBa 2 Cu 4 O 8 (Y1248) is confirmed by a Curie-law T -dependence of NMR linewidth and the Cu relaxation at low T . The reduction of Cu-NQR signal intensity in Ni-doped Y1248 suggests that, in co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6df0b235942256b327208af00feed98d
https://doi.org/10.1016/0921-4534(96)00083-4
https://doi.org/10.1016/0921-4534(96)00083-4
Publikováno v:
Journal of the Society of Powder Technology, Japan. 32:158-163
A synthetic process for the nano-composite of a Ba2YCu3O7-y superconductor and Ag was examined. Hybridization through grinding promoted the uniform dispersion of Ag ultrafine particles (10nm order of diameter) in the Ba2YCu3O7-y matrix. HIP sintering
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e3bc09a93afa8dfbd848b740155d1c0
https://doi.org/10.4164/sptj.32.158
https://doi.org/10.4164/sptj.32.158
Publikováno v:
Journal of Materials Science. 29:5183-5187
R-curve behaviour of three kinds of silicon nitride-based ceramics has been studied using the single-edge notched beam (SENB) technique. If the notch is deep enough, the specimen shows stable fracture during the bending test, even when the sample is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c79fdec5ac9fee5a1818f2f0a227618
https://doi.org/10.1007/bf01151114
https://doi.org/10.1007/bf01151114
Publikováno v:
Journal of Alloys and Compounds. :361-364
The properties of internal friction and tensile creep deformation of alumina ceramics are compared. The internal friction was measured by a torsion pendulum-type testing equipment, with increasing temperature up to 1450 °C. Tensile creep deformation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::367d640781b06d0d9abfdaf5b75a1618
https://doi.org/10.1016/0925-8388(94)90521-5
https://doi.org/10.1016/0925-8388(94)90521-5
Autor:
Z. Guo, K. Kawamoto, Uichiro Mizutani, Nobuyoshi Yamada, Shigeru Horii, Yuh Yamada, Izumi Hirabayashi, Yasuharu Kodama
Publikováno v:
Physica C: Superconductivity. 231:131-136
The PrBa 2 Cu 4 O 8 compound with a trace of BaCuO 3 and PrBaO 3 was synthesized for the first time by annealing at the temperature or 957°C under 5 atm oxygen pressure. The content of the PrBaO 3 is estimated to be less than 0.2%. The superconducti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0b70f756de201df542a3d6c0b144246
https://doi.org/10.1016/0921-4534(94)90152-x
https://doi.org/10.1016/0921-4534(94)90152-x
Autor:
M. Otsuka, T. Yamanishi, Akiyuki Matsushita, Shigeru Horii, Izumi Hirabayashi, Yasuharu Kodama, Yuh Yamada, Takehiko Matsumoto, S. Takashima, N Yamanada, K. Kawamoto
Publikováno v:
Physica C: Superconductivity. 227:254-258
We have investigated the pressure effects on the electrical resistivities of (Y 1− x Pr x ) 2 Ba 4 Cu 7 O 15-δ ( x = 0, 0.1 , 0.4 and 0.6) polycrystals. The superconducting transition temperature T c decreases from 78.8 K ( x = 0) to 40 K ( x = 0.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f986f94a2e207cf6d09246e06aa5ea07
https://doi.org/10.1016/0921-4534(94)90079-5
https://doi.org/10.1016/0921-4534(94)90079-5