The determination of low-field critical current densities from magnetization data for Nb - 25% Zr
- 1 March 1972
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 5 (3) , 628-638
- https://doi.org/10.1088/0022-3727/5/3/325
Abstract
Magnetization measurements are used to determine low-field critical current densities of superconductors. Analysis is based on a critical state model and takes into account magnetic field discontinuities at the surface of the specimen. The analysis has been applied to cold-drawn Nb - 25% Zr wires which have been subjected to a range of heat treatments. Results are compared with direct measurements of the critical currents of wires.Keywords
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