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arXiv · 2112.01179

Vortex matter in a two-band SQUID-shaped superconducting film

C. A. Aguirre·Julian Faundez·S. G. Magalhaes·J. Barba-Ortega
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Abstract

In the present work we studied the magnetization, vorticity, Cooper pairs density and the space 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-Oschenfeld 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 cluster due to the Josephson coupling used between condensates.

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C. A. Aguirre, Julian Faundez, S. G. Magalhaes, J. Barba-Ortega. 2021-12-02. Vortex matter in a two-band SQUID-shaped superconducting film. https://doi.org/10.1007/s10909-022-02701-3

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