TY - JOUR
T1 - Anisotropic current transport properties and their scaling in multifilamentry Bi-2223 Ag-sheathed tapes
AU - Kiss, Takanobu
AU - Okamoto, Hiroshi
N1 - Funding Information:
Manuscript received September 17, 2000. This work was supported in part by the NEDO, Japan, under Grant No. 99812-005-1. T. Kiss was with the Applied Superconductivity Center, University of Wisconsin-Madison, WI53706-1687, USA, on leave from Kyushu University, Fukuoka 812-8581, Japan (e-mail: kiss@sc.kyushu-u.ac.jp, telephone: +81-92-642-39 10). H. Okamoto is with Kyushu Electric Power Co., Inc., Fukuoka 815-8520, Japan (e-mail: Hiroshi-A-Okamoto@kyuden.co.jp).
PY - 2001/3
Y1 - 2001/3
N2 - Using a statistic E-J model describing percolative current transport properties, we analyzed pinning strength, its distribution and angular dependence of Bi-2223 Ag-sheathed tapes. It has been shown the anisotropy can be attributed to angular dependence of the depinning transition field, and a scaling holds with respect to the pinning force density. The angular dependence of the transition field can be described precisely by an extended Tinkham 2D model taking into account misalignment angle of the filaments. We driven an analytical expression describing the magnetic field and angular dependence of Jc and n value of the tape. It allows us to predict the angular dependence of the transport properties using only limited data set, i.e., 1) magnetic field dependence in perpendicular field and 2) anisotropic ratio of the transition fields between perpendicular and parallel configuration.
AB - Using a statistic E-J model describing percolative current transport properties, we analyzed pinning strength, its distribution and angular dependence of Bi-2223 Ag-sheathed tapes. It has been shown the anisotropy can be attributed to angular dependence of the depinning transition field, and a scaling holds with respect to the pinning force density. The angular dependence of the transition field can be described precisely by an extended Tinkham 2D model taking into account misalignment angle of the filaments. We driven an analytical expression describing the magnetic field and angular dependence of Jc and n value of the tape. It allows us to predict the angular dependence of the transport properties using only limited data set, i.e., 1) magnetic field dependence in perpendicular field and 2) anisotropic ratio of the transition fields between perpendicular and parallel configuration.
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U2 - 10.1109/77.919921
DO - 10.1109/77.919921
M3 - Conference article
AN - SCOPUS:0035268045
SN - 1051-8223
VL - 11
SP - 3900
EP - 3903
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 1 III
T2 - 2000 Applied Superconductivity Conference
Y2 - 17 September 2000 through 22 September 2000
ER -