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arXiv · 2112.00886

Vortex state in a superconducting mesoscopic irregular octagon

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

Our study sample is a superconducting bi-dimensional octagon with different boundary conditions immersed in a magnetic external field H. The boundary conditions are simulated by considering different values of the deGennes extrapolation length b on different surfaces of the sample. Our investigation was carried out by solving the two-band time dependent Ginzburg-Landau equations (TB-TDGL). We analyzed the superconducting electron density and the magnetization curves as functions of H and temperature T in zero field cooling and in zero field cooling processes for different values of b and size of the sample. We found a strong dependence of the critical fields on b and size of the sample.

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C. A. Aguirre, Julian Faundez, J. Barba-Ortega. 2021-12-01. Vortex state in a superconducting mesoscopic irregular octagon. https://doi.org/10.1142/s0217984922500294

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