Magnetization and Critical Current of a Weakly Anisotropic HTSC with Columnar Pinning Centers

The effect of columnar pinning centers on the current–voltage characteristic, the critical current, and the shape of the magnetization curve has been studied by the Monte Carlo method within a three-dimensional model of a layered high-temperature superconductor. It has been shown that the presence o...

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Bibliographic Details
Published in:Physics of atomic nuclei 2023-12, Vol.86 (9), p.2057-2063
Main Authors: Maksimova, A. N., Kashurnikov, V. A., Rudnev, I. A., Moroz, A. N.
Format: Article
Language:English
Subjects:
Anisotropy
Critical current (superconductivity)
Current voltage characteristics
High temperature superconductors
Magnetization
Magnetization curves
Mathematical Modeling in Nuclear Technologies
Monte Carlo method
Monte Carlo simulation
Particle and Nuclear Physics
Physics
Physics and Astronomy
Pinning
Three dimensional models
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Summary:The effect of columnar pinning centers on the current–voltage characteristic, the critical current, and the shape of the magnetization curve has been studied by the Monte Carlo method within a three-dimensional model of a layered high-temperature superconductor. It has been shown that the presence of a weak intrinsic pinning does not qualitatively change the calculation results. It has been shown that a periodic lattice of pinning centers leads to an avalanche-like penetration of vortices at a certain threshold field and the existence of vortex-free regions at a lower field. This difference has been demonstrated on the magnetization curves. These effects have not been observed for a quasi-periodic lattice of pinning centers.
ISSN:1063-7788
1562-692X
DOI:10.1134/S1063778823090144