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Large Predicted Self-Field Critical Current Enhancements In Superconducting Strips Using Magnetic Screens

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 نشر من قبل Yuri Genenko
 تاريخ النشر 2000
  مجال البحث فيزياء
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A transport current distribution over a wide superconducting sheet is shown to strongly change in a presence of bulk magnetic screens of a soft magnet with a high permeability. Depending on the geometry, the effect may drastically suppress or protect the Meissner state of the sheet through the enhancement or suppression of the edge barrier critical current. The total transport current in the magnetically screened Meissner state is expected to compete with the critical current of the flux-filled sheet only for samples whose critical current is initially essentially controlled by the edge barrier effect.



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