English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A study of the time-dependent electric field, E(t), and E-I curves of BSCCO/Ag tapes at 77 K is presented. Measurements were performed on tapes carrying DC transport current and exposed to external AC (0-500 G, 4-400 Hz) magnetic fields perpendicular to the broad side of the tape. E-I curves measured at frequencies exceeding 50 Hz and at amplitudes of the AC field below 400 G are well described by power law in the range between 0.1 and 10 μV/cm of the electric field. The results within this domain of parameters are discussed, assuming a narrowing down of the DC current path under the application of a perpendicular AC field. Nearly linear dependency of electric field on transport current was observed at the frequency-amplitude domain below 10 Hz and above 500 G. Using magneto-optical techniques we are able to determine that in this domain the AC magnetic field fully penetrates the tape. Behaviour of E-I curves under these conditions can be elucidated using the "dynamic resistance" model in conjunction with the assumption that the magnetic field fully penetrates the superconductor.

Time dependent electric field and E-I curves in Bi-2223 tapes carrying DC currents and exposed to perpendicular AC magnetic fields