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Calculation of magnetic flux profiles and deduction of critical current densities for type II superconductors

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1109/20.133441
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Affiliation
  1. National Research Council of Canada
FormatText, Article
Subjectmagnetic flux; magnetization; magnetic materials; critical current density; type ii superconductors; superconducting materials; equations; data analysis; magnetic analysis; guidelines
Abstract
The critical state concept for the calculation of internal flux profiles in type II superconductors is used to model the magnetization behavior of high-T/sub c/ materials. In this application of the model, the field-dependent reversible magnetization and critical current density are incorporated flexibly into numerical solutions of the basic equations. The solutions are compared to results obtained by using the Bean (constant J/sub c/) and Kim (field dependent J/sub c/) approximations. The authors use theoretically calculated magnetization curves to analyze experimental magnetization data for bulk, textured Y/ErBaCuO samples obtained from their own work and from recently published work. Pitfalls and guidelines when using such measurements to obtain intrinsic material critical current densities are discussed
Publication date
PublisherIEEE
In
  • IEEE Transactions on Magnetics 27, no. 2: 1379–1382.
LanguageEnglish
Peer reviewedYes
NRC numberCNRC 33344
NRC-IMI91AP-20000-1201-G
NPARC number23004416
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Record identifier5626c9b4-f013-4f1b-94f7-c04204b846ea
Record created2018-10-31
Record modified2020-03-17
Date modified: