Title :
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
fDate :
3/1/2001 12:00:00 AM
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;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
