TY - JOUR
T1 - Measurement of local current flow around transverse defects in YBCO film by use of scanning SQUID microscope
AU - Koyanagi, K.
AU - Kiss, T.
AU - Inoue, M.
AU - Nakamura, T.
AU - Imamura, K.
AU - Takeo, M.
AU - Shiohara, Y.
N1 - Funding Information:
This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental technologies for Superconductivity Applications, and also by JSPS: KAKENHI (15360151).
PY - 2006/10/1
Y1 - 2006/10/1
N2 - Nonlinear current flow around artificial defects in YBCO epitaxial film has been investigated by use of scanning SQUID microscope. Two-dimensional local current flow around the transverse defects in the YBCO film has been visualized successfully from the magnetic self-field image. Experimental results showed good agreement with theoretical solution based on the Maxwell's equation along with nonlinear current-voltage characteristics. Present method allows us to measure the non-uniform current flow quantitatively under the influence of obstacles in the micro-meter length scale.
AB - Nonlinear current flow around artificial defects in YBCO epitaxial film has been investigated by use of scanning SQUID microscope. Two-dimensional local current flow around the transverse defects in the YBCO film has been visualized successfully from the magnetic self-field image. Experimental results showed good agreement with theoretical solution based on the Maxwell's equation along with nonlinear current-voltage characteristics. Present method allows us to measure the non-uniform current flow quantitatively under the influence of obstacles in the micro-meter length scale.
UR - http://www.scopus.com/inward/record.url?scp=33748142049&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33748142049&partnerID=8YFLogxK
U2 - 10.1016/j.physc.2006.05.003
DO - 10.1016/j.physc.2006.05.003
M3 - Article
AN - SCOPUS:33748142049
SN - 0921-4534
VL - 445-448
SP - 677
EP - 681
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
IS - 1-2
ER -