TY - JOUR
T1 - Effect of external magnetic field on the critical current in single and bifilar Bi-2223 tapes
AU - Shaked, N.
AU - Friedman, A.
AU - Sinvani, M.
AU - Al-Omari, I. A.
AU - Wolfus, Y.
AU - Shaulov, A.
AU - Yeshurun, Y.
N1 - Funding Information:
This research has been supported by the Israel Ministry of National Infrastructures, R&D Department, and by the Belfer Foundation. I.A.A. acknowledges support from the Jordan University of Science and Technology.
PY - 2001/5
Y1 - 2001/5
N2 - We report on measurements of the critical current in a single and bifilar multifilamentary Bi-2223/Ag tapes, at 77 K, under various DC magnetic fields applied perpendicular to the tape plane. At low applied fields the bifilar tape exhibits higher critical current, as expected. However, above ∼50 G the situation is reversed, i.e., the critical current of the single tape is higher. These results are attributed to the different spatial distribution of the self-field in these two configurations. Our data and analysis imply that, in terms of critical current, the bifilar configuration has over advantage over the single tape configuration only in a limited range of external magnetic fields.
AB - We report on measurements of the critical current in a single and bifilar multifilamentary Bi-2223/Ag tapes, at 77 K, under various DC magnetic fields applied perpendicular to the tape plane. At low applied fields the bifilar tape exhibits higher critical current, as expected. However, above ∼50 G the situation is reversed, i.e., the critical current of the single tape is higher. These results are attributed to the different spatial distribution of the self-field in these two configurations. Our data and analysis imply that, in terms of critical current, the bifilar configuration has over advantage over the single tape configuration only in a limited range of external magnetic fields.
KW - Bi-2223 tape
KW - Bifilar sample
KW - Critical current
KW - Magnetic field
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U2 - 10.1016/S0921-4534(01)00137-X
DO - 10.1016/S0921-4534(01)00137-X
M3 - Article
AN - SCOPUS:0035332568
SN - 0921-4534
VL - 354
SP - 237
EP - 241
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
IS - 1-4
ER -