Vortex Trapping and Expulsion in Thin-Film Type-II Superconducting Strips

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Kuit, Kristiaan H. and Kirtley, John R. and Clem, John R. and Rogalla, Horst and Flokstra, Jaap (2009) Vortex Trapping and Expulsion in Thin-Film Type-II Superconducting Strips. IEEE Transactions on Applied Superconductivity, 19 (3). pp. 3537-3540. ISSN 1051-8223

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Abstract:Vortex trapping is investigated in thin-film strips of superconducting material. We present a model for the critical field above which vortex trapping occurs in these strips. This model includes the pairing energy of vortex-antivortex pairs in addition to the energy of single vortices. Experimental verification of the model with a scanning SQUID microscope shows very good agreement between the model and experiments on YBa2Cu3O7-delta and Nb strips. Statistical analysis of the vortex distribution in the strips above the critical field has been performed and a comparison has been made between Nb and YBa2Cu3O7-delta for the distributions in the lateral and longitudinal directions.
Item Type:Article
Copyright:© 2009 IEEE
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/71142
Official URL:http://dx.doi.org/10.1109/TASC.2009.2018080
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Metis ID: 260820