Flux Pinning by Barium Stannate Nanoparticles in MOD YBCO Coated Conductors

Tin-based nanoparticles, proposed to be barium stannate, have been formed in YBCO films fabricated by metal-organic deposition, through modification of the precursor solution. These randomly-oriented 30-50 nm particles are dispersed throughout the film thickness, providing an enhancement in the isot...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2009-06, Vol.19 (3), p.3140-3143
Main Authors: Strickland, N.M., Talantsev, E.F., Xia, J.A., Long, N.J., Rupich, M.W., Xiaoping Li, Wei Zhang
Format: Article
Language:English
Subjects:
Applied sciences
Barium stannate
Barium zirconates
COATINGS
Conductive films
Conductors
COPPER OXIDE
Critical current
DEPOSITION
Electric connection. Cables. Wiring
ELECTRICAL CONDUCTORS
Electrical engineering. Electrical power engineering
Electromagnets
Exact sciences and technology
Film thickness
FLUX PINNING
Magnetic fields
Magnetic materials
Nanoparticles
PARTICLES
PINNING
Superconducting materials
SUPERCONDUCTIVITY
SUPERCONDUCTORS
Various equipment and components
Wires
YBCO superconductors
Yttrium barium copper oxide
YTTRIUM OXIDE
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Description
Summary:Tin-based nanoparticles, proposed to be barium stannate, have been formed in YBCO films fabricated by metal-organic deposition, through modification of the precursor solution. These randomly-oriented 30-50 nm particles are dispersed throughout the film thickness, providing an enhancement in the isotropic flux pinning relative to undoped YBCO. For a low level of nanoparticle addition of 2 vol%, a flux-pinning force enhancement of up to 32% is achieved. We report field and field-angle dependence of the transport critical current, transmission electron microscopy, and X-ray diffraction of our YBCO films on RABiTS substrates, and compare with similar barium zirconate additions.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2009.2018735