Flux patterns of multifilamentary Ag-sheathed (Pb,Bi)2Sr2Ca2Cu3O10+δ tapes

被引：5
作者：
Koblischka, MR
Johansen, TH
Bratsberg, H
Pust, L
Galkin, A
Nálevka, P
Marysko, M
Jirsa, M
Bentzon, M
Bodin, P
Vase, P
Freltoft, T
机构：
[1] Univ Oslo, Dept Phys, N-0316 Oslo, Norway
[2] Wayne State Univ, Dept Phys & Astron, Detroit, MI 48202 USA
[3] Acad Sci Czech Republ, Inst Phys, CZ-18040 Prague, Czech Republic
[4] Nord Supercond Technol AS, DK-2605 Brondby, Denmark
来源：
JOURNAL OF APPLIED PHYSICS | 1998年 / 83卷 / 11期
关键词：
D O I：
10.1063/1.367865
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Flux patterns of multifilamentary Ag-sheathed (Pb,Bi)(2)Sr2Ca2Cu3O10+delta tapes comprising 19 filaments are visualized by means of magneto-optic imaging. In low fields, the shielding currents are seen to flow mainly in the outermost filaments. With increasing external magnetic field, the inner filaments also contribute to the current flow. To compare the local flux distribution with the integral magnetization values, magnetization loops are measured by a SQUID magnetometer on the same sample following the fields used in the magneto-optic imaging (+/-120 mT) and covering fields up to +/-5 T at various temperatures. The magnetization loops also reveal that the multifilamentary tapes show the anomalous position of the central peak, but always less pronounced than in monofilamentary tapes. (C) 1998 American Institute of Physics.
引用
收藏
页码：6798 / 6800
页数：3
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