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Effect of Column Defects on the Vortex Dynamics of Superconducting Thin Film with Ginzburg–Landau Parameters

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Abstract

The time-dependent Ginzburg–Landau equations (TDGL) for a type-II superconducting film containing columnar defects are solved by the finite difference method. The effect of the number of defects on the flux dynamics inside the superconducting film is discussed. The effect of the Ginzburg–Landau parameter \(\kappa\) on the vorticity of superconducting films with columnar defects is also analyzed. The results show that the formation of vortices is affected when the superconductor contains columnar defects. In addition, the defects and the Ginzburg–Landau parameter \(\kappa\) also affect the maximum magnitude of the order parameter and the number of defects. Finally, we discuss the relationship between the magnetization of superconducting films with columnar defects and the external magnetic field.

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The data that support the findings of this study are available from the corresponding author, upon reasonable request.

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Funding

This research was supported by the National Natural Science Foundation of China (No.12262020, 52268042).

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Authors and Affiliations

  1. School of Science, Lanzhou University of Technology, Lanzhou, 730050, China

    Yufeng Zhao & Jiantang Xi

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  1. Yufeng Zhao
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  2. Jiantang Xi
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Contributions

Yufeng Zhao: Conceptualization, Methodology, Software, Datacuration, Supervision, Writing – review & editing. Jiantang Xi: Writingoriginal draft, Visualization, Software, Validation.

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Correspondence to Yufeng Zhao.

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We declare that we have no financial and personal relationships with other people or organizations that can inappropriately influence our work, there is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construed as influencing the position presented in, or the review of, the manuscript entitled “Effect of column defects on the vortex dynamics of superconducting thin film with Ginzburg–Landau parameters”.

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Zhao, Y., Xi, J. Effect of Column Defects on the Vortex Dynamics of Superconducting Thin Film with Ginzburg–Landau Parameters. J Supercond Nov Magn 36, 1343–1352 (2023). https://doi.org/10.1007/s10948-023-06571-y

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