Model for the low-temperature transport of Bi-based high-temperature superconducting tapes

Journal Article · Sat Feb 01 00:00:00 EST 1992 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.45.2545· OSTI ID:5000526

Bulaevskii, L N; Clem, J R ^[1]; Glazman, L I ^[2]; Malozemoff, A P ^[3]

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1. Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)
2. Theoretical Physics Institute, University of Minnesota, Minneapolis, Minnesota 55455 (United States)
3. American Superconductor Corporation, 149 Grove Street, Watertown, Massachusetts 02172 (United States)

A grain-structure model is used to obtain the low-temperature transport properties of polycrystalline Bi-based high-temperature superconducting tapes, including the magnetic-field-dependent critical current. The grain structure is regarded as resembling a brick wall, such that the net horizontal supercurrent passes from brick to brick chiefly through the horizontal junctions between bricks. A high-field critical-current plateau is predicted, assuming inhomogeneous Josephson junctions between highly anisotropic superconducting grains.

• DOE Contract Number: AC05-84OR21400; W-7405-ENG-82; FG02-90ER45427
• OSTI ID: 5000526
• Journal Information: Physical Review, B: Condensed Matter; (United States), Vol. 45:5; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
HIGH-TC SUPERCONDUCTORS
CRITICAL CURRENT
SUPERCONDUCTING FILMS
BISMUTH COMPOUNDS
GRAIN BOUNDARIES
JOSEPHSON JUNCTIONS
MIXED STATE
POLYCRYSTALS
CRYSTAL STRUCTURE
CRYSTALS
CURRENTS
ELECTRIC CURRENTS
FILMS
JUNCTIONS
MICROSTRUCTURE
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTORS
360207* - Ceramics
Cermets
& Refractories- Superconducting Properties- (1992-)