Title:
SUPERCONDUCTOR
Document Type and Number:
Japanese Patent JPH05148084
Kind Code:
A
Abstract:
PURPOSE:To obtain a superconductor having oxide superconducting thin films of a specific structure laminated in high quality on a substrate and anisotropic superconducting characteristics in the surface direction of the substrate and provide a superconductor in which the oxide superconducting thin films and the normal conducting thin films are selectively formed on the substrate. CONSTITUTION:The objective superconductor 2 is characterized by having an off substrate 1, composed of a single crystal and having a surface tilted at a prescribed angle to the crystal surface, oxide superconducting thin films (2a) and normal conducting thin films (2b), laminated and formed in desired selected positions on the surface of the off substrate 1. Joining defects caused by lattice constant misfit of the materials between the substrate surface and the thin films are reduced by using the off substrate 1. The oxide superconducting thin films and normal conducting thin films are selectively laminated and formed by controlling plural evaporation sources. In this example, Y-Ba-Cu-O-based oxide superconducting thin films and Pr-Ba-Cu-O-based normal conducting thin films are respectively used.
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Inventors:
TOKUNAGA SEIICHI
FURUKAWA HIROAKI
NAKAO MASAO
FURUKAWA HIROAKI
NAKAO MASAO
Application Number:
JP31642491A
Publication Date:
June 15, 1993
Filing Date:
November 29, 1991
Export Citation:
Assignee:
SANYO ELECTRIC CO
International Classes:
C30B23/08; C30B29/22; H01L21/203; H01L39/24; (IPC1-7): C30B23/08; C30B29/22; H01L21/203; H01L39/24
Attorney, Agent or Firm:
Takuji Nishino