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Title: Superconductor films with improved flux pinning and reduced AC losses

Patent ·
OSTI ID:1016807

The present invention relates to a method for producing a defect-containing superconducting film, the method comprising (a) depositing a phase-separable layer epitaxially onto a biaxially-textured substrate, wherein the phase-separable layer includes at least two phase-separable components; (b) achieving nanoscale phase separation of the phase-separable layer such that a phase-separated layer including at least two phase-separated components is produced; and (c) depositing a superconducting film epitaxially onto said phase-separated components of the phase-separated layer such that nanoscale features of the phase-separated layer are propagated into the superconducting film.

Research Organization:
UT-Battelle, LLC (Oak Ridge, NJ)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-Battelle, LLC (Oak Ridge, NJ)
Patent Number(s):
7,919,435
Application Number:
US Patent Application 11/800,455
OSTI ID:
1016807
Country of Publication:
United States
Language:
English

References (3)

The influence of filament arrangement on current distribution and AC loss in Bi-2223/Ag tapes journal February 2004
Low AC Loss Structures in YBCO Coated Conductors With Filamentary Current Sharing journal June 2005
Microstructure of SrTiO 3 buffer layers and itseffects on superconducting properties ofYBa 2 Cu 3 O 7-δ coated conductors journal June 2004