ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Starting from our general critical-state theory, which includes the effects of both flux-line cutting and flux pinning, we develop a numerical method for finding the magnetic response of type-II superconductors subjected to parallel magnetic fields that change in both magnitude and orientation. We describe model calculations of the time-evolving magnetic profiles when the direction of an applied magnetic field of fixed magnitude oscillates with large amplitude, and we compare our results with related experiments by Cave and LeBlanc. We also report model calculations for the ac behavior when the sample is subjected to a dc bias field and a large-amplitude ac field at various angles (0°, 45°, and 90°) relative to this field.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.335520
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