Virgin magnetization of a magnetically shielded superconductor wire: Theory and experiment

On the basis of exact solutions to the London equation, the magnetic moment of a type II superconductor filament surrounded by a soft-magnet environment is calculated and the procedure of extracting the superconductor contribution from magnetic measurements is suggested. A comparison of theoretical...

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Published in:Applied physics letters 2004-05, Vol.84 (19), p.3921-3923
Main Authors: Genenko, Yu. A., Yampolskii, S. V., Pan, A. V.
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Language:English
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description On the basis of exact solutions to the London equation, the magnetic moment of a type II superconductor filament surrounded by a soft-magnet environment is calculated and the procedure of extracting the superconductor contribution from magnetic measurements is suggested. A comparison of theoretical results with experiments on MgB2/Fe wires allows the estimation of the value of critical current for the first magnetic flux penetration.
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title Virgin magnetization of a magnetically shielded superconductor wire: Theory and experiment
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