Superconductor technology: apparatus – material – process – High temperature – per se – Having tc greater than or equal to 150 k
Patent
1988-03-04
1990-10-09
Roy, Upendra
Superconductor technology: apparatus, material, process
High temperature , per se
Having tc greater than or equal to 150 k
156610, 252521, 420901, 505729, C30B 710, C30B 2922
Patent
active
049620878
ABSTRACT:
A thin film superconducting device is described in which the substrate is a single or mixed single crystal of lanthanum orthogallate grown from a pure melt of lanthanum, gallium and additive oxides. A portion of the gallium single crystal can be replaced by Sc, Al or In and/or a portion of the lanthanum can be replaced by a rare earth element of smaller ionic radius than lanthanum to allow for manipulation of the lattice constant.
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G. Sallavuard et al.-Lanthanide Monogallates; Mar. 1969; C. R. Academy of Sciences, Paris; pp. 1050-1053.
M. Mizuno et al.-Phase Diagram of the System Gallium Trioxide-Lanthanum Oxide at High Temps.; Gov't. Industrial Research Institute, 1985; pp. 295-300.
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Belt Roger F.
Uhrin Robert
Litton Systems Inc.
Rotella Robert F.
Roy Upendra
Wallach Michael R.
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