Title:
OXIDE SUPERCONDUCTING THIN FILM
Document Type and Number:
WIPO Patent Application WO/2012/161233
Kind Code:
A1
Abstract:
The present invention improves critical current performance while suppressing increase in kinds of raw materials. Additionally, the present invention improves critical current performance even in the case of a single layer.
An oxide superconducting thin film includes a superconducting layer containing a plurality of RE-based superconductor units configured by containing rare earth elements, CuO chains, and CuO2 planes; the CuO chain that exists in the RE-based superconductor units around an interface of the superconducting layer and a layer adjacent to a base material side of the superconducting layer, among a plurality of the CuO chains, and has the length longer in the stacking direction than the length of the CuO chains, which are determined by lattice constants of the RE-based superconductor units, by not less than 1.2 times and not more than twice; and an edge dislocation that exists adjacent to the long CuO chain in the stacking direction. Alternatively, the RE-based superconductors of the superconducting layer have CuO2 planes, CuO single-chains, and CuO heavy-chains, and further have different chain portions where the CuO single-chains and the CuO heavy-chains are adjacent to each other, and have the same chain portions where the CuO single-chains are adjacent to each other or the CuO heavy-chains are adjacent to each other.
Inventors:
NAKAO KENGO (JP)
SASAKI HIROKAZU (JP)
KASAHARA HAJIME (JP)
MATSUI MASAKAZU (JP)
SASAKI HIROKAZU (JP)
KASAHARA HAJIME (JP)
MATSUI MASAKAZU (JP)
Application Number:
PCT/JP2012/063231
Publication Date:
November 29, 2012
Filing Date:
May 23, 2012
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
NAKAO KENGO (JP)
SASAKI HIROKAZU (JP)
KASAHARA HAJIME (JP)
MATSUI MASAKAZU (JP)
NAKAO KENGO (JP)
SASAKI HIROKAZU (JP)
KASAHARA HAJIME (JP)
MATSUI MASAKAZU (JP)
International Classes:
C01G1/00; C01G3/00; C30B29/22; H01B12/06; H01B13/00
Foreign References:
| JP2007308336A | 2007-11-29 | |||
| JP2007308337A | 2007-11-29 | |||
| JP2003327496A | 2003-11-19 | |||
| JP2007302507A | 2007-11-22 | |||
| JP2008050190A | 2008-03-06 | |||
| JP2008140789A | 2008-06-19 | |||
| JP2008140789A | 2008-06-19 | |||
| JPS63318014A | 1988-12-26 | |||
| JP2005116408A | 2005-04-28 | |||
| JP2009283372A | 2009-12-03 | |||
| JP2011114926A | 2011-06-09 | |||
| JP2011114927A | 2011-06-09 |
Other References:
See also references of EP 2607317A4
Attorney, Agent or Firm:
NAKAJIMA, Jun et al. (JP)
Nakajima 淳 (JP)
Nakajima 淳 (JP)
Download PDF:
Claims: