EPJ Web of Conferences
Volume 40, 2013JEMS 2012 – Joint European Magnetic Symposia
|Number of page(s)||4|
|Section||Magnetism and superconductivity|
|Published online||14 January 2013|
Negative magnetic relaxation in superconductors
NRC Kurchatov Institute, 123182, Moscow
MPTI, 141700, Russia, Moscow reg.
It was observed that the trapped magnetic moment of HTS tablets or annuli increases in time (negative relaxation) if they are not completely magnetized by a pulsed magnetic field. It is shown, in the framework of the Bean critical-state model, that the radial temperature gradient appearing in tablets or annuli during a pulsed field magnetization can explain the negative magnetic relaxation in the superconductor.
© Owned by the authors, published by EDP Sciences, 2013
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