Abstract
In the present work, we studied the magnetization, vorticity, Cooper pairs density, and the spatial distribution of the local magnetic field in a three-dimensional superconductor with a SQUID geometry (a square with a central hole connected to the outside vacuum through a very thin slit). Our investigation was carried out in both the Meissner-Ochsenfeld and the Abrikosov state solving the two-band Ginzburg-Landau equations considering a Josephson coupling between the bands. We found a non-monotonic vortex behavior and the respective generation of vortex clusters due to the Josephson coupling used between condensates.
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Acknowledgements
C. A. Aguirre, would like to thank the Brazilian agency CAPES, for financial support, Grant number: 0.89.229.701-89. J. Faúndez and S. G. Magalhães thank FAPERGS, CAPES and CNPq for partially financing this work under the Grant PRONEX 16/0490-0.
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Aguirre, C.A., Faúndez, J., Magalhães, S.G. et al. Vortex Matter in a Two-Band SQUID-Shaped Superconducting film. J Low Temp Phys 207, 85–96 (2022). https://doi.org/10.1007/s10909-022-02701-3
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DOI: https://doi.org/10.1007/s10909-022-02701-3