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Author Safar, H. ♦ Foltyn, S. ♦ Kung, H. ♦ Maley, M. P. ♦ Willis, J. O. ♦ Arendt, P. ♦ Wu, X. D.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ BARIUM OXIDES ♦ CRITICAL CURRENT ♦ COPPER OXIDES ♦ HIGH-TC SUPERCONDUCTORS ♦ YTTRIUM OXIDES ♦ ANISOTROPY ♦ GRAIN BOUNDARIES ♦ MICROSTRUCTURE ♦ TWINNING
Abstract We show that the in-plane critical current density of heavily twinned YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} thick films is anisotropic, depending on the relative orientation between the transport electrical current and the twin boundary mosaic. We demonstrate that the critical current density in an applied magnetic field can be substantially increased by producing conductors with twin boundaries tilted 45{degree} with respect to the electrical current flow. We show that these findings can be readily incorporated to improve the critical currents of biaxially textured YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} thick films deposited on metallic substrates. {copyright} {ital 1996 American Institute of Physics.}
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-03-01
Publisher Place United States
Journal Applied Physics Letters
Volume Number 68
Issue Number 13


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