Three-Dimensional Molecular Dynamics Method for Vortex pinning by Splayed Columnar Defects

We have developed three-dimensional molecular dynamics method, in which anisotropy of a superconductor and vortex core energy are included. We have applied it to a superconductor with splayed columnar defects. We have found that under a driving force due to an external current, vortices show wanderi...

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Bibliographic Details
Published in:Journal of physics. Conference series 2022-08, Vol.2323 (1), p.12014
Main Author: Kato, Masaru
Format: Article
Language:English
Subjects:
Anisotropy
Defects
Molecular dynamics
Physics
Pinning
Vortices
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Summary:We have developed three-dimensional molecular dynamics method, in which anisotropy of a superconductor and vortex core energy are included. We have applied it to a superconductor with splayed columnar defects. We have found that under a driving force due to an external current, vortices show wandering structures, which comes from the pinning force from splayed columnar defects. Especially, for weak core energy, vortices become soft or flexible. In an isotropic superconductor, these wandering structures disappear.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2323/1/012014