Zobrazeno 1 - 10
of 107
pro vyhledávání: '"Takanori, Fujiyoshi"'
Autor:
Norito Ishikawa, Hiroshi Yamaguchi, Takanori Fujiyoshi, Tetsuro Sueyoshi, Yasuki Okuno, Ryusei Enokihata
Publikováno v:
IEEE Transactions on Applied Superconductivity. 31:1-5
Angular behaviors of critical current density J c and n -values at 77 K, 1 T were investigated in YBCO films with columnar defects (CDs) tilted at small angles to the ab -plane before and after the additional introduction of CDs at different angles,
Autor:
Ataru Ichinose, Norito Ishikawa, Tetsuro Sueyoshi, Yosuke Takai, Yasuya Iwanaga, Mitsuhiro Muta, Takanori Fujiyoshi, Masashi Mukaida
Publikováno v:
IEEE Transactions on Applied Superconductivity. 29:1-4
Columnar defects (CDs) along a -axis were installed into an in-plane aligned a -axis-oriented $\text{YBa}_{2}\text{Cu}_{3}\text{O}_{y}$ film by using heavy-ion irradiation, in order to clarify the influence of CDs on flux pinning properties around B
Autor:
Akiyoshi Matsumoto, T. Kuwahara, Tetsuro Sueyoshi, Hitoshi Kitaguchi, Takanori Fujiyoshi, Shuji Sakai
Publikováno v:
IEEE Transactions on Applied Superconductivity. 28:1-4
The microstructure and superconducting properties of doped thin films of the superconductor (Bi,Pb) 2 Sr 2 Ca 2 Cu 3 O x (Bi,Pb-2223), fabricated by sputtering using doped Bi,Pb-2223 targets and subsequent annealing, were investigated. The aim of thi
Autor:
Takanori Fujiyoshi, Tetsuro Sueyoshi, Hitoshi Kitaguchi, Akiyoshi Matsumoto, Norito Ishikawa, R. Kuwahara, S. Sakai
Publikováno v:
IEEE Transactions on Applied Superconductivity. 28:1-4
High-quality Hf- and Zr-doped Bi,Pb2223 films on SrTiO3 substrate were fabricated by RF magnetron sputtering and two-step annealing. In order to investigate flux pinning properties of columnar defects, Xe-ions were irradiated onto the Hf- and Zr-dope
Autor:
Tetsuro Sueyoshi, Norito Ishikawa, Takanori Fujiyoshi, Masahiro Irie, Yuka Hidaka, Ryusei Enokihata, Yasuki Okuno
Publikováno v:
Physica C: Superconductivity and its Applications. 582:1353824
We investigated the combined effect of flux pinning by three-directional columnar defects (CDs) in a wide field-angular range of YBa2Cu3Oy thin films, where CDs parallel to the c-axis and CDs crossing at ±θi (θi = 45°, 60° and 80°) relative to
Autor:
Takanori Fujiyoshi, Y. Uraguchi, Tetsuro Sueyoshi, T. Kotaki, Norito Ishikawa, T. Makihara, M. Suenaga
Publikováno v:
Physica C: Superconductivity and its Applications. 530:72-75
In order to clarify the influence of size and spatial distribution of three-dimensional pinning centres (3D-PCs) on hybrid flux pinning, columnar defects (CDs) were installed by using 200 MeV Xe ions along the c -axis direction into quasi-multilayere
Autor:
Takanori Fujiyoshi, Shunsuke Takahira, Ataru Ichinose, Yuusuke Ichino, Yutaka Yoshida, Tetsuro Sueyoshi
Publikováno v:
IEEJ Transactions on Fundamentals and Materials. 136:200-204
Autor:
Masaki Kudo, Satoshi Semboshi, Toshinori Ozaki, Kazuhiro Yasuda, Norito Ishikawa, Yuichi Furuki, Takanori Fujiyoshi, Tetsuro Sueyoshi, T. Kotaki, Hitoshi Sakane
Publikováno v:
Japanese Journal of Applied Physics. 59:023001
We show that Xe-ion irradiation with 80 MeV to GdBa2Cu3O y coated conductors creates different morphologies of columnar defects (CDs) depending on the irradiation angles θ i relative to the c-axis: continuous CDs with a larger diameter are formed fo
Autor:
Y. Uraguchi, F. Mitugi, Takanori Fujiyoshi, T. Makihara, M. Suenaga, Tomoaki Ikegami, T. Kotaki, Tetsuro Sueyoshi
Publikováno v:
Physica C: Superconductivity and its Applications. 518:63-68
In order to investigate the influence of diameter and spatial distribution of three-dimensional (3D) pinning centers on critical current density Jc, BMO (BaSnO3 (BSO) or BaHfO3 (BHO)) doped YBa2Cu3Oy (YBCO) thin films were fabricated by a quasi-multi
Publikováno v:
Physica C: Superconductivity and its Applications. 518:58-62
In order to reveal the influence of crossing angle of one-dimensional pinning centers on angular dependence of critical current density J c , heavy-ion irradiation was performed to introduce columnar defects (CDs) crossing at ± θ i relative to the