Alternating field loss in a multifilament superconducting wire for weak ac fields superposed on a constant bias
- 1 September 1975
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 46 (9), 4048-4052
- https://doi.org/10.1063/1.322108
Abstract
Expressions are given for the alternating field loss in a twisted filamentary superconductor as a function of frequency and magnetic field, for the case of small ac applied fields which do not completely penetrate the filaments. The ac field is superimposed on a fixed bias field. In this limit the effective diamagnetism of the filament leads to a permeability less than unity for the composite. Expressions are presented for both the hysteresis and the eddy current loss.Keywords
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