AC LOSSES IN (BI,PB)2SR2CA2CU3OX TAPES

被引：2

作者：

DANNA, G ^{[1
]}

INDENBOM, MV ^{[1
]}

ANDRE, MO ^{[1
]}

BENOIT, W ^{[1
]}

GRIVEL, JC ^{[1
]}

HENSEL, B ^{[1
]}

FLUKIGER, R ^{[1
]}

机构：

[1] UNIV GENEVA,DEPT PHYS MAT CONDENSEE,CH-1211 GENEVA 4,SWITZERLAND

来源：

PHYSICA C | 1994年 / 225卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(94)90328-X

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A double peak structure is observed in the AC losses of (Bi,Pb)2Sr2Ca2Cu3Ox silver-sheathed tapes using a torsion-pendulum oscillator. The low-temperature peak is associated to the intragrain flux expulsion, while the high-temperature peak results from a macroscopic current path around the whole sample due to a well-coupled fraction of the grains. The flux pinning by the dislocations forming small-angle grain boundaries is suggested to control the transport current.

引用

页码：79 / 82

页数：4

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