Voltage-current curves of high-temperature superconductor tapes measured at controlled current ramp rate compared with collective flux creep model

Wen Juan Song, Shuo Li, Du Xing Chen, Jin Fang

    Research output: Contribution to journalArticleResearch

    1 Citation (Scopus)

    Abstract

    © 2018 Elsevier B.V. The voltage-current V(I) curve of high-temperature superconductor tapes as a function of current ramp rate R modelled by the collective flux creep model, with a power-law dependence of local electric field on current density, shows an approximate low-I relation V∝IR and a high-V relation V∝In. In order to compare experimental V(I) curves with the flux creep model prediction, a setup is designed with I provided by a dc power supply driven by an arbitrary waveform function generator and V and I data acquired synchronously by two nano-voltmeters. Some experimental results are given with their features discussed.
    Original languageEnglish
    Pages (from-to)21-25
    JournalPhysica C: Superconductivity and its Applications
    Volume553
    DOIs
    Publication statusPublished - 15 Oct 2018

    Keywords

    • Power-law E(J) relation
    • Ramp rate
    • Superconductor tape
    • Voltage-current curve

    Fingerprint Dive into the research topics of 'Voltage-current curves of high-temperature superconductor tapes measured at controlled current ramp rate compared with collective flux creep model'. Together they form a unique fingerprint.

    Cite this