Jpn. J. Appl. Phys. 30 (1991) pp. L18-L20 |Next Article| |Table of Contents|
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Magnetization of Ceramic Y-Ba-Cu-O and Bi-Sr-Ca-Cu-O after Neutron Irradiation
Saburo Takamura,
Hajime Sekino,
Hideo Matushima,
Mamoru Kobiyama1,
Taiji Hoshiya2,
Keiji Sumiya3 and
Hideji Kuwajima3
Tokai Research Establishment, Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken 319-11
1Faculty of Engineering, Ibaraki University, Hitachi, Ibaraki-ken 311-13
2Oarai Research Establishment, Japan Atomic Energy Research Institute, Oarai-machi, Higashi-Ibaraki-gun, Ibaraki-ken 311-13
3Ibaraki Research Laboratory, Hitachi Chemical Co., Ltd., Tarasaki, Katsuta-shi, Ibaraki-ken 312
(Received September 28, 1990; accepted for publication November 5, 1990)
Magnetization of ceramic Y-Ba-Cu-O and Bi-Sr-Ca-Cu-O superconductors was studied after neutron irradiation in the fluence from 2.4×1021/m2 to 1.8×1022/m2 at 60°C. The area of hysteresis loops was enhanced at low neutron fluence, followed by saturation and then a decrease at high fluence. In Bi-Sr-Ca-Cu-O, the degree of enhancement was smaller than in Y-Ba-Cu-O and the enhancement reached saturation at lower neutron fluence.
URL:
http://jjap.jsap.jp/link?JJAP/30/L18/
DOI: 10.1143/JJAP.30.L18
KEYWORDS:Bi-Sr-Ca-Cu-O, Y-Ba-Cu-O, flux pinning, magnetization, neutron irradiation, ceramic high-temperature superconductor, hysteresis loss
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