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ID 18811
file
creator
Yamaguchi, Tetsuji
Iguchi, Ienari
abstract
The two-dimensional vector mapping of current distributions in high-TC superconducting YBa2Cu3O7-y thin films obtained by converting magnetic-field data measured by scanning superconducting quantum interference device (SQUID) microscopy is reported. The current distribution contains the contributions from both transport supercurrent and vortex current. The transport supercurrent is found to flow mainly along the edge of a stripline, and the numerical calculation based on the simple London model by taking the specific sample-detector geometry into account is given. The agreement between the experimental data and the calculated results is good, demonstrating that the scanning SQUID microscope provides a useful tool for studying the current distribution in a superconductor.
journal title
Applied Physics Letters
volume
Volume 77
issue
Issue 19
start page
3069
end page
3071
date of issued
2000-11-06
publisher
American Institute of Physics
issn
0003-6951
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2000 American Institute of Physics.
relation url
department
Graduate School of Integrated Arts and Sciences