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Vortex States and Magnetization Properties in Mesoscopic Superconducting Ring Structures: A Finite-Element Analysis

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Abstract

The time-dependent Ginzburg–Landau equations have been solved numerically by a finite-element analysis for mesoscopic superconducting ring structures with different inner radii. For given applied magnetic fields, we have studied the influences of the inner radius on the vortex states and the magnetization properties of these systems. Our results show that the multivortex states can be stabilized in the mesoscopic superconducting ring with proper inner radius. Magnetization curves show that the magnetic vortices penetrate easily into the superconductor, and the system is magnetized easily for the superconducting ring with smaller inner radius.

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Acknowledgments

This work is sponsored by the Natural Science Foundation of Shanghai (No. 13ZR1417600), the Innovation Program of Shanghai Municipal Education Commission (No. 14YZ132), and the Shanghai Science Fund for the Excellent Young Teachers (No. Z2012-012).

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Authors and Affiliations

  1. Department of Physics and College of Environmental and Chemical Engineering, Shanghai University of Electric Power, 201300, Shanghai, China

    Lin Peng, Zejiang Wei & Danhua Xu

  2. Department of Materials, Fudan University, 200433, Shanghai, China

    Lin Peng

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  1. Lin Peng
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  2. Zejiang Wei
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  3. Danhua Xu
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Correspondence to Lin Peng.

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Peng, L., Wei, Z. & Xu, D. Vortex States and Magnetization Properties in Mesoscopic Superconducting Ring Structures: A Finite-Element Analysis. J Supercond Nov Magn 27, 1991–1995 (2014). https://doi.org/10.1007/s10948-014-2554-8

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  • DOI: https://doi.org/10.1007/s10948-014-2554-8

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