Numerical Model for Calculating the Field Dependence of the Irreversible Magnetisation of Hard Ssuperconductors in High Pulsed Magnetic Fields

Details Numerical Model for Calculating the Field Dependence of the Irreversible Magnetisation of Hard Ssuperconductors in High Pulsed Magnetic Fields Numerical Model for Calculating the Field Dependence of the Irreversible Magnetisation of Hard Ssuperconductors in High Pulsed Magnetic Fields

1999-11-24

arxiv.org/abs/cond-mat/9911393v1

Physics

Condensed Matter

Superconductivity

4 pages, PDF-file

Scientific paper

In type II hard superconductors the irreversible magnetization shows an impressive variety of different magnetic field dependencies. In this paper we will try to describe the M(H) relation at fixed temperature To by a numerical model in which we incorporate two features: the magnetic and electric field dependency of the local critical current density j(To,H,E). The electric field is determined by the magnetic field sweep rate; in effect E ~ dB/dt. We confront the model with experimental pulsed field magnetization measurements (PFMM) on a fast melt processed YBa2Cu3O7 sample.

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