HYSTERETIC EFFECTS IN THE FLUX-FLOW STATE OF ANTIGRANULOCYTES HIGH-TC SUPERCONDUCTORS

被引：22

作者：

KWASNITZA, K

WIDMER, C

机构：

[1] Paul-Scherrer-Institute

来源：

PHYSICA C | 1990年 / 171卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(90)90132-X

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

When an intergrain transport current larger than Ic is applied to sintered YBa2Cu3O7 samples in an external magnetic field we find hysteretic flux-flow voltage. While the flux-flow resistivity is not hysteretic, we can explain the effects by the dependence of critical transport current on the magnetic history of the samples. We find also partly a decrease of flux-flow voltage with increasing magnetic field. Also this effect, which in literature has been called "negative magnetoresistance" is explained. © 1990.

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页码：211 / 215

页数：5

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