Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Hiroko Higuma"'
Autor:
Hideomi Koinuma, Noriaki Okazaki, Hiroko Higuma, Masashi Kawasaki, Yuji Matsumoto, Yasuo Cho, Tomoteru Fukumura, Sohei Okazaki, Tetsuya Hasegawa, Shoji Miyashita, Yukio Yamamoto, Makoto Murakami, Jun Nishimura
Publikováno v:
Applied Surface Science. 223:196-199
Dielectric property of a composition-spread LiNb 1-x Ta x O 3 thin film, fabricated by the combinatorial pulsed-laser deposition (PLD) method, was systematically characterized by the scanning microwave microscope (SμM). Measured frequency shift show
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c93f602633ad6ccadc50f4f7a98f416
https://doi.org/10.1016/s0169-4332(03)00916-4
https://doi.org/10.1016/s0169-4332(03)00916-4
Publikováno v:
Physica C: Superconductivity. 291:302-308
Hg 1− x Re x Ba 2 Ca 2 Cu 3 O y samples with a nominal composition of x =0, 0.1 and 0.2 were synthesized at a high pressure from the powders of raw materials without calcination. We investigated the influence of the nominal Re content ( x ) and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5b9cf4d86c4031fddacabb8dfd63970
https://doi.org/10.1016/s0921-4534(97)01678-x
https://doi.org/10.1016/s0921-4534(97)01678-x
Autor:
Kunihiko Egawa, Shouji Miyashita, Kenji Shimohata, Hiroko Higuma, S. Yokoyama, Takashi Inaguchi, Fujita Shigeto, S. Nakamura, Fusaoki Uchikawa, Toshio Umemura
Publikováno v:
TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan). 29:65-70
Field operation and cooling test of high Tc coil made of Bi-based pancake coil were carried out. By the measurement of critical current distribution inside the high Tc coil, we found that the critical current of the edge pancake coil is lower than th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e146b7d0509fd969425b72b0b77570d2
https://doi.org/10.2221/jcsj.29.65
https://doi.org/10.2221/jcsj.29.65
Publikováno v:
Applied Physics Letters. 65:743-745
Superconducting Pb‐doped HgBa2CaCu2Oy films have been successfully synthesized on the (100) SrTiO3 substrate by laser ablation using a Pb‐doped Hg‐1212 target and post‐annealing. The as‐deposited film was post‐annealed with a pellet of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59e64875404e43f56a5053742af2c484
https://doi.org/10.1063/1.112217
https://doi.org/10.1063/1.112217
Autor:
Kenji Shimohata, Hiroko Higuma, Shoji Miyashita, Fusaoki Uchikawa, S. Yokoyama, Mitsunobu Wakata
Publikováno v:
Advances in Superconductivity VIII ISBN: 9784431668732
Precursor powder of a nominal composition of Bi2Ph0.44Sr2.2Ca2.4Cu3.4Ag0.5Oy by citrate method was calcined with two different processes that first heating temperatures were different. Intermediate phases formed during calcinations were analyzed by E
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3973f7ff4c6f8399a6a30a7de5389803
https://doi.org/10.1007/978-4-431-66871-8_195
https://doi.org/10.1007/978-4-431-66871-8_195
Autor:
Edmund Soji Otabe, Toshio Umemura, M. Nozue, Shoji Miyashita, K. Noda, Fusaoki Uchikawa, Teruo Matsushita, Hiroko Higuma
Publikováno v:
Advances in Superconductivity VII ISBN: 9784431685371
Recently discovered Hg-based oxide superconductors are found to be less anisotropic than Bi-based ones and expected to have superior irreversible properties. In order to investigate the irreversible property in this material, the critical current den
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ced25a1edfbc88ca6f4c751d0ba3ef0b
https://doi.org/10.1007/978-4-431-68535-7_111
https://doi.org/10.1007/978-4-431-68535-7_111
Publikováno v:
Advances in Cryogenic Engineering Materials ISBN: 9781475790559
The heat treatment process was investigated for the multifilamentary Nb3Sn wires fabricated by internal tin diffusion method. We adopted the new process (rapid heating) without conventional heat treatment (multistep heating). The rapid heating was pe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bddc9c1e3a694cf0fd39f8912808056
https://doi.org/10.1007/978-1-4757-9053-5_117
https://doi.org/10.1007/978-1-4757-9053-5_117
Publikováno v:
Japanese Journal of Applied Physics. 40:5281
Since perovskite manganese oxide Bi–La–Sr–Mn–O (BLSMO) has a large temperature coefficient of resistance (TCR: defined as 1/R dR/dT) of above 3%/K, it has been considered to be a suitable candidate for use as an uncooled IR bolometer material
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce822eb13601240f40baa24ce5877a7f
https://doi.org/10.1143/jjap.40.5281
https://doi.org/10.1143/jjap.40.5281
Publikováno v:
Japanese Journal of Applied Physics. 39:L1308
In this study, we are exploring the use of perovskite manganese oxide for bolometric applications. To obtain a large temperature coefficient of resistance (TCR: defined as 1/R d R/d T) at near-room temperature, we formed (Bi, La)1-x Sr x MnO3 (BLSMO)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45b61bc86cf4eaab43f8fc4992e77e31
https://doi.org/10.1143/jjap.39.l1308
https://doi.org/10.1143/jjap.39.l1308
Publikováno v:
Japanese Journal of Applied Physics. 33:L931
Hg-1212 films were prepared on the (100) SrTiO3 substrate by laser ablation and subsequent annealing. The as-grown film was annealed with a Hg-1212 bulk pellet in a quartz tube. The superconducting transition temperature T c(onset) was 123 K and T c(
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c43804eedc309a3e38f9ac41afad9b56
https://doi.org/10.1143/jjap.33.l931
https://doi.org/10.1143/jjap.33.l931