Correlation between the superfluid density ns(T) ∝ 1/λab2(T) at low temperatures and nanostructures in a-b planes of YBCO

被引：7

作者：

Jung, J ^{[1
]}

Boyce, B

Yan, H

Abdelhadi, M

Skinta, J

Lemberger, T

机构：

[1] Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada

[2] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

来源：

JOURNAL OF SUPERCONDUCTIVITY | 2000年 / 13卷 / 05期

关键词：

high-temperature superconductivity; YBCO; thin films; superfluid density; critical current; nanostructures;

D O I：

10.1023/A:1007818300517

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A correlation between the superfluid density n(s)(T) proportional to 1/lambda (2)(ab) (T) at low temperatures and the nanoscopic disorder in the a-b planes of YBCO thin films has been revealed. It has been found that a degree of this disorder can be determined from the two-component dependence of the critical current density on temperature. These findings are consistent with a discovery of a nanodomain structure in the a-b planes of an optimally doped YBCO [J. Etheridge, Phil. Mag. A73, 643 (1996)].

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页码：753 / 757

页数：5

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