Vortex velocity laws to I-V data for flat superconductors

Author

Chapman, S. Jonathan ; Grief, Andrew D. ; Howison, Sam D. ; McCulloch, Malcolm D. ; Dew-Hughes, David ; Moore, Jo ; Grovenor, Chris M.

Author_Institution

Math. Inst., Oxford Univ., UK

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

3943

Lastpage

3946

Abstract

A vortex-density model for type-II superconductors is used to study the transport current in a strip in flux-flow conditions. Flux pinning is incorporated using a stick-slip vortex velocity law. Current and vortex density profiles are calculated, and the effect of applied magnetic fields and pinning strength is analysed. The I-V characteristics are determined and related to the local vortex velocity law. Initial comparisons of the results with experimental data show good agreement

Keywords

flux flow; flux pinning; high-temperature superconductors; superconducting thin films; HTSC; I-V data; applied magnetic fields; current density profiles; flat superconductors; flux pinning; flux-flow conditions; local vortex velocity law; pinning strength; stick-slip vortex velocity law; transport current; type-II superconductors; vortex density profiles; vortex velocity laws; vortex-density model; Circuit faults; Conductive films; Fault current limiters; Flux pinning; Geometry; High temperature superconductors; Strips; Superconducting materials; Superconductivity; Telephony;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.919939

Filename

919939