THERMALLY ACTIVATED FLUX MOTION IN ARTIFICIALLY GROWN YBA2CU3O7/PRBA2CU3O7 SUPERLATTICES

被引：176

作者：

BRUNNER, O

ANTOGNAZZA, L

TRISCONE, JM

MIEVILLE, L

FISCHER, O

机构：

[1] Département de Physique de la Matière Condensée, Université de Genève, 1211 Genève 4

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.67.1354

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied the thermally activated flux-flow resistance in YBa2Cu3O7/PrBa2Cu3O7 (YBCO/PrBCO) artificial superlattices in magnetic fields perpendicular to the a-b plane. We find for multilayers with thick enough (> 24 angstrom) insulating PrBCO layers and for YBCO thicknesses smaller than 300 angstrom that the activation energy has a logarithmic magnetic-field dependence and that it is proportional to the YBCO thickness in the multilayer.

引用

页码：1354 / 1357

页数：4

共 18 条

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