Title:
POLYCRYSTALLINE THIN FILM AND ITS PRODUCTION, AND OXIDE SUPERCONDUCTOR AND METHOD FOR ITS PRODUCTION
Document Type and Number:
WIPO Patent Application WO/2001/029293
Kind Code:
A1
Abstract:
An oxide superconductor (22) characterized as comprising a polycrystalline substrate (A), a polycrystalline thin film (B) formed on the surface thereof to have a formed film, and an oxide superconductor layer (C) formed on the film, wherein the polycrystalline thin film (B) comprises crystal grains (20) having a crystal structure of C type of a rare earth oxide represented by an empirical formula such as Y¿2?O¿3? or Sc¿2?O¿3?, and the gain boundary canted angles which are formed by same crystal axes of grains (20) along a plane parallel to the surface of the polycrystalline substrate to have a formed film thereon are 30° or less. The polycrystalline thin film (B) is formed by the ion beam assisting method. After the formation of the polycrystalline thin film (B), the oxide superconductor layer (C) is formed.
Inventors:
IIJIMA YASUHIRO (JP)
KIMURA MARIKO (JP)
SAITO TAKASHI (JP)
KIMURA MARIKO (JP)
SAITO TAKASHI (JP)
Application Number:
PCT/JP2000/007213
Publication Date:
April 26, 2001
Filing Date:
October 18, 2000
Export Citation:
Assignee:
FUJIKURA LTD (JP)
INT SUPERCONDUCTIVITY TECH (JP)
IIJIMA YASUHIRO (JP)
KIMURA MARIKO (JP)
SAITO TAKASHI (JP)
INT SUPERCONDUCTIVITY TECH (JP)
IIJIMA YASUHIRO (JP)
KIMURA MARIKO (JP)
SAITO TAKASHI (JP)
International Classes:
C30B23/02; H01B12/06; C30B29/22; H01L39/24; (IPC1-7): C30B29/22; H01B12/06
Foreign References:
| JPH1153967A | 1999-02-26 | |||
| JPH10231122A | 1998-09-02 |
Other References:
ICHINOSE A. et al., "Deposition of Y2O3 buffer layers on biaxially-textured metal substrates", Physica C., Vol. 302, No. 1, 10 June 1998, pages 51-56.
Attorney, Agent or Firm:
Shiga, Masatake (Takadanobaba 3-chome Shinjuku-ku Tokyo, JP)
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