Effects of the vortex line shape on the critical current density in high T-c superconducting film with nanorod pinning centers

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We studied the critical current density distribution in a coated conductor comprised of (Gd, Y)(1)Ba2Cu3O7-delta-BaZrO3 film. Transmission electron microscopy measurements showed that nanorod pinning centers tilt by similar to 13 degrees from the c-axis. Magneto-optical image (MOI) measurements showed interesting asymmetric distributions of magnetic flux density. From MOIs we calculated the asymmetric distributions of the critical current density, which is associated with the properties of vortex pinning. We were able to explain these results through the geometrical relationship of the tilted rod pinning centers and the curved vortex lines.
Publisher
IOP PUBLISHING LTD
Issue Date
2012-06
Language
English
Article Type
Article
Keywords

VORTICES

Citation

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, v.25, no.6

ISSN
0953-2048
DOI
10.1088/0953-2048/25/6/065001
URI
http://hdl.handle.net/10203/102246
Appears in Collection
PH-Journal Papers(저널논문)
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