Journal
PROCEEDINGS OF THE 25TH INTERNATIONAL SYMPOSIUM ON SUPERCONDUCTIVITY (ISS2012)
Volume 45, Issue -, Pages 61-64Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.phpro.2013.04.052
Keywords
Bulk superconductors; RE-Ba-Cu-O; Gd-Ba-Cu-O; Trapped magnetic fields; large single-grain
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Funding
- Grants-in-Aid for Scientific Research [23560002] Funding Source: KAKEN
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So far there have been few reports on high trapped fields for a large superconducting bulk because of large electromagnetic force and insufficient homogeneity. In this paper, the temperature dependence of trapped field for one large crystal of Gd-Ba-Cu-O 46 mm in diameter was empirically investigated. The sample was not broken even in the 10 T field-cooling, implying that the sample quality is excellent in spite of the large size. The trapped field measured at the sample surface was 9.1 T at 42 K, but it can be estimated approximately 13 T by extrapolating the experimental data over 60 K. (C) 2013 The Authors. Published by Elsevier B.V.
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