Longitudinal critical current variation in short samples of Bi-2212/Ag and Bi-2223/Ag monocore tapes and its origin

被引：0
|
作者：
Polak, M
Polyanskii, A
Zhang, W
Anderson, J
Hellstrom, E
Larbalestier, D
机构：
[1] Univ Wisconsin, Ctr Appl Superconduct, Madison, WI 53706 USA
[2] Slovak Acad Sci, Inst Elect Engn, SK-84239 Bratislava, Slovakia
[3] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Russia
来源：
APPLIED SUPERCONDUCTIVITY 1997, VOLS 1 AND 2: VOL 1: SMALL SCALE AND ELECTRONIC APPLICATIONS; VOL 2: LARGE SCALE AND POWER APPLICATIONS | 1997年 / 158期
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中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Variations in local longitudinal critical currents in short samples of Bi-2223 and Bi-2212 monocore tapes were studied. The sample critical current and local values of the critical current in some sections of the Bi-2212 tapes increased considerably if the silver was removed from the test section. This effect was smaller in Bi-2223 tapes. Current transfer voltages associated with inhomogeneities are responsible for the observed behavior. Magneto-optical experiments support the results of the transport measurements.
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页码：893 / 896
页数：4
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