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Title: Buffer layers on metal alloy substrates for superconducting tapes

Patent ·
OSTI ID:1175064
; ; ;

An article including a substrate, at least one intermediate layer upon the surface of the substrate, a layer of an oriented cubic oxide material having a rock-salt-like structure upon the at least one intermediate layer, and a layer of a SrRuO.sub.3 buffer material upon the oriented cubic oxide material layer is provided together with additional layers such as a HTS top-layer of YBCO directly upon the layer of a SrRuO.sub.3 buffer material layer. With a HTS top-layer of YBCO upon at least one layer of the SrRuO.sub.3 buffer material in such an article, J.sub.c 's of up to 1.3.times.10.sup.6 A/cm.sup.2 have been demonstrated with projected I.sub.c 's of over 200 Amperes across a sample 1 cm wide.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-7405-ENG-36
Assignee:
The Regents of the University of California (Los Alamos, NM)
Patent Number(s):
6,800,591
Application Number:
10/242,895
OSTI ID:
1175064
Country of Publication:
United States
Language:
English

References (4)

Structural and electrical properties of Ba 0.5 Sr 0.5 TiO 3 thin films with conductive SrRuO 3 bottom electrodes journal April 1995
Fabrication and properties of epitaxial ferroelectric heterostructures with (SrRuO 3 ) isotropic metallic oxide electrodes journal November 1993
Josephson coupling of YBa 2 Cu 3 O 7− x through a ferromagnetic barrier SrRuO 3 journal August 1993
Epitaxial YBa/sub 2/Cu/sub 3/O/sub 7- delta / thin films on LaMgAl/sub 11/O/sub 19/: new substrates with low dielectric losses journal March 1993

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