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Levitation force and trapped magnetic field of multi-grain YBCO bulk superconductors

✍ Scribed by J.S. Choi; S.D. Park; B.H. Jun; Y.H. Han; N.H. Jeong; B.G. Kim; J.M. Sohn; C.J. Kim

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
709 KB
Volume
468
Category
Article
ISSN
0921-4534

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The levitation forces of samples with different grain size have been directly investigated and identified in well-textured YBCO bulks. A single-domain YBCO bulk of Β£30 mm was prepared by a top seeded melt growth process, then divided into two, three and four parts to acquire the levitation forces of

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We measured the temperature dependence of the trapped field and the magnetic levitation force for c-axis-oriented single-grain Gd-Ba-Cu-O bulk samples 48 mm in diameter. Trapped magnetic field of the samples was 2.1-2.2 T at 77 K and increased with decreasing temperature and reached 4.1 T at 70 K, h