Abstract

Abstract The effect of finite magnetic shields on the current distribution and voltage in superconductor strips is studied theoretically and experimentally. It is found that the reduction of the edge current peaks due to the magnetic shields saturates fast when the thickness of the shields is increased. This enables the use of thin magnets for shielding provided that the small thickness of the shields is compensated by high magnetic permeability. The effect of soft magnets (ferrites) on the current–voltage characteristics in the YBCO strip is studied experimentally for different strip-magnet arrangements and compared to the theory predictions.

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