Dressed Josephson junction network models and low-field magnetic response of high-Tc granular superconductors

被引：3
|
作者：
De Luca, R [1 ]
机构：
[1] Univ Salerno, INFM, I-84084 Fisciano, SA, Italy
[2] Univ Salerno, DIIMA, I-84084 Fisciano, SA, Italy
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2004年 / 400卷 / 3-4期
关键词：
superconducting granular systems; Josephson junction networks; DC susceptibility;
D O I：
10.1016/j.physc.2003.08.002
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A bare three-dimensional model, in which grains are reduced to points, cannot fully account for the magnetic properties of granular superconductors. A dressed version of these network models is proposed to discuss the quantitative link between the low-field magnetic response of high-T-c superconducting granular samples and the characteristic properties of Josephson junction network models. By means of dressed models, the temperature dependence of the d.c. field-cooled susceptibility of a simple three-dimensional granular system, consisting of eight grains in a cubic arrangement, is studied. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：153 / 159
页数：7
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