EFFECTS OF THE ANISOTROPY ON THE NONOHMIC BEHAVIOR IN HIGH-TC SUPERCONDUCTORS

被引：20

作者：

PARACCHINI, C

ROMANO, L

机构：

[1] Dipartimento di Fisica, Universita' di Parma, Parma

来源：

PHYSICA C | 1992年 / 191卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(92)90631-L

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Current-voltage characteristics in YBCO and BSCCO, at temperatures near the superconducting transition, exhibit non-Ohmic responses with power dependence V = AI(alpha(T)). The comparison of the alpha(T) trends reported for several crystals, films and ceramic samples evidences behaviour which differ in the compounds independently on the sample features. A development of the Kosteritz-Thouless model for quasi-bidimensional systems is proposed and a dependence of the non-Ohmic behaviour on the anisotropy of the material is obtained.

引用

页码：72 / 76

页数：5

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