Epitaxial YBa{sub 2}Cu{sub 3}O{sub 7} on biaxially textured nickel (001): An approach to superconducting tapes with high critical current density
- Oak Ridge National Lab., TN (United States); and others
In-plane-aligned, c axis-oriented YBa{sub 2}Cu{sub 3}O{sub 7} (YBCO) films with superconducting critical current densities J{sub c} as high as 700,000 amperes per square centimeter at 77 kelvin have been grown on thermomechanically rolled-textured nickel (001) tapes by pulsed-laser deposition. Epitaxial growth of oxide buffer layers directly on biaxially textured nickel, formed by recrystallization of cold-rolled pure nickel, made possible the growth of YBCO films 1.5 micrometers thick with superconducting properties that are comparable to those observed for epitaxial films on single-crystal oxide substrates. This result represents a viable approach for the production of long superconducting tapes for high-current, high-field applications at 77 kelvin. 30 refs., 4 figs.
- OSTI ID:
- 433215
- Journal Information:
- Science, Journal Name: Science Journal Issue: 5288 Vol. 274; ISSN SCIEAS; ISSN 0036-8075
- Country of Publication:
- United States
- Language:
- English
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