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Melt-processed Sm - Ba - Cu - O superconductors trapping strong magnetic field

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Published under licence by IOP Publishing Ltd
, , Citation H Ikuta et al 1998 Supercond. Sci. Technol. 11 1345 DOI 10.1088/0953-2048/11/11/001

0953-2048/11/11/1345

Abstract

Large c-axis-oriented Sm - Ba - Cu - O bulk superconductors were prepared using the melt-process technique in a reduced oxygen atmosphere. Single-domain samples up to 36 mm in diameter were successfully and reproducibly synthesized with no severe weak-link within the samples. The trapped magnetic field at the open surface of the sample was recorded as 8.0 T at 40 K when measured immediately after the external field was swept down to zero. This value far exceeds that of a melt-processed Y - Ba - Cu - O with a similar size.

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10.1088/0953-2048/11/11/001