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29 March 2024
 
  » arxiv » cond-mat/0504229

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Considerable enhancement of the critical current in a superconducting film by magnetized magnetic strip
D. Y. Vodolazov ; B. A. Gribkov ; S. A. Gusev ; A. Yu. Klimov ; Yu. N. Nozdrin ; V. V. Rogov ; S. N. Vdovichev ;
Date 10 Apr 2005
Subject Superconductivity | cond-mat.supr-con
AbstractWe show that a magnetic strip on top of a superconducting strip magnetized in a specified direction may considerably enhance the critical current in the sample. At fixed magnetization of the magnet we observed diode effect - the value of the critical current depends on the direction of the transport current. We explain these effects by a influence of the nonuniform magnetic field induced by the magnet on the current distribution in the superconducting strip. The experiment on a hybrid Nb/Co structure confirmed the predicted variation of the critical current with a changing value of magnetization and direction of the transport current.
Source arXiv, cond-mat/0504229
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