Current-voltage characteristics of long Bi2Sr2Ca2Cu3O10/Ag multifilamentary tapes at different bending strains

被引：6
|
作者：
AlMosawi, MK
Crisan, A
Beduz, C
Phillips, D
Haldar, P
机构：
[1] UNIV SOUTHAMPTON,INST CRYOGEN,SOUTHAMPTON SO17 1BJ,HANTS,ENGLAND
[2] NATL INST MAT PHYS,BUCHAREST,ROMANIA
[3] INTERMAGNET GEN CORP,LATHAM,NY 12110
来源：
PHYSICA C | 1997年 / 289卷 / 1-2期
关键词：
multifilamentary tapes; I-V curves; bending strain; vortex fluctuations;
D O I：
10.1016/S0921-4534(97)01587-6
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The current-voltage (I-V) characteristics of long Bi2Sr2Ca2Cu3O10/Ag (Bi:2223) multifilamentary tapes with different bending strains were measured in a large range of dissipation (10(-12)-10(-3) V/cm). The experimental data were successfully interpreted in terms of current-induced unbinding of the thermally-created vortex-antivortex pairs by taking into account the size limitation of vortex fluctuations. It was found that the shape of the I-V curves can be explained by the contributions to the dissipation of superconducting intergrain contacts having different qualities (i.e. different critical currents) and by the appearance of micro-cracks during the bending process. (C) 1997 Elsevier Science B.V.
引用
收藏
页码：63 / 69
页数：7
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