Field, temperature, and angle dependence of the critical current density in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 10}/Ag ribbons

Journal Article · Wed Feb 01 00:00:00 EST 1995 · Journal of Superconductivity

DOI:https://doi.org/10.1007/BF00732239· OSTI ID:81613

Dhalle, M; Cuthbert, M N; Cohen, L F; Perkins, G K; Caplin, A D ^[1]; Yang, M; Grovenor, C R.M. ^[2]; Dou, S X; Liu, H K; Hu, Q Y ^[3]

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1. Imperial College, London (United Kingdom)
2. Univ. of Oxford (United Kingdom)
3. Univ. of New South Wales, Kensington (Australia); and others

Current-voltage characteristics of high-critical-current Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 10}/Ag ribbons were measured using both transport and magnetization techniques. The slope of these curves changes with magnetic field and temperature in a way very similar to the observed j{sub c}(H,T) behavior. This correspondence between the critical current and the slope of the I-V characteristics can be explained within the thermally activated flux creep framework. The dependence of j{sub c} on the angle between field and ribbon is compared to the existing intrinsic anisotropy models.

• Sponsoring Organization: USDOE
• OSTI ID: 81613
• Journal Information: Journal of Superconductivity, Vol. 8, Issue 1; Other Information: PBD: Feb 1995
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BISMUTH OXIDES
ELECTRIC CONDUCTIVITY
CRITICAL CURRENT
STRONTIUM OXIDES
CALCIUM OXIDES
COPPER OXIDES
HIGH-TC SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
MAGNETIC FIELDS