Effect in twist on wires made from in situ superconductors

The effect of twist on the transverse field hysteresis of in situ superconducting wires is assumed to result from a lowering of the axial critical current density due to anisotropy of critical current density in the material. In weak transverse magnetic fields the twist raises the hysteresis loss, w...

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Bibliographic Details
Published in:Journal of applied physics 1983-11, Vol.54 (11), p.6549-6552
Main Author: CARR, W. J. JR
Format: Article
Language:English
Subjects:
Applied sciences
Electronics
Exact sciences and technology
Materials
Online Access:Get full text
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Summary:The effect of twist on the transverse field hysteresis of in situ superconducting wires is assumed to result from a lowering of the axial critical current density due to anisotropy of critical current density in the material. In weak transverse magnetic fields the twist raises the hysteresis loss, while in stronger fields the twist lowers the loss. It is shown that the axial critical current density determined from hysteresis or magnetic moment measurements in a twisted wire can be lower than the value obtained from transport measurements.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.331887