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Description:

We investigate the magnetic-field hysteresis effect on critical current (Ic) of Sn-Pb solders by focusing on flux trapping states. A clear difference in Ic is observed between the zero-field-cooled (ZFC) and field-cooled (FC) states. The Ic for the FC sample is 127.7 A which is larger than Ic = 107.8 A for the ZFC sample at H = 300 Oe. Through investigation of Ic and magnetization, we propose that the phase-separated superconducting alloys can show clearly enhanced Ic by flux trapping, and the exotic states are potentially available for designing superconducting applications.

Rights:

• Creative Commons BY Attribution 4.0 International
  

Keyword: Sn-Pb solder, critical current, flux trapping

Date published: 2026-05-29

Publisher: IOP Publishing

Journal:

• Japanese Journal of Applied Physics (ISSN: 00214922) vol. 65 issue. 10 p. 100904-

Funding:

• Exploratory Research for Advanced Technology JPMJER2201

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.35848/1347-4065/ae6ea6

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Updated at: 2026-06-02 08:05:23 +0900

Published on MDR: 2026-06-02 11:32:38 +0900