Patents Represented by Attorney Michael R. Wallach

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  • Epitaxial superconducting scructure on lattice matched lanthanum orthogallate
    Patent number: 4962087
    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.
    Type: Grant
    Filed: March 4, 1988
    Date of Patent: October 9, 1990
    Assignee: Litton Systems, Inc.
    Inventors: Roger F. Belt, Robert Uhrin