Vortex configurations in regular arrays of pinning sites

The vortex states interacting with a triangular lattice of pinning sites in a two-dimensional (2D) superconducting sample have been investigated by using a molecular dynamics approach. The Nordborg–Vinokur potential is used to model the interaction between the vortices and the pinning sites. We have...

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Bibliographic Details
Published inPhysica. C, Superconductivity Vol. 470; no. 1; pp. 15 - 19
Main Author YETIS, H
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 2010
Elsevier
Subjects
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Numerical simulation studies
Physics
Properties of type I and type II superconductors
Superconductivity
Type-II superconductors
Vortex lattices ,flux pinning, flux creep
Vortex pinning
Vortex states
Type-II superconductors
Numerical simulation studies
Vortex pinning
Vortex states
Flux pinning
Triangular lattices
Digital simulation
Vortices
Molecular dynamics method
Vorticity
Vortex vortex interaction
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Summary:The vortex states interacting with a triangular lattice of pinning sites in a two-dimensional (2D) superconducting sample have been investigated by using a molecular dynamics approach. The Nordborg–Vinokur potential is used to model the interaction between the vortices and the pinning sites. We have found several ordered vortex configurations, such as pentagons, hexagons, and shells depending on two critical parameters of the system, namely pinning radius and vorticity. Our results are in good agreement with the results of Bitter decoration experiments performed on type-II superconductors with blind hole and pillar arrays.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0921-4534
1873-2143
DOI:10.1016/j.physc.2009.09.006