Simulation and study of the percolation effect in the magnetic susceptibility of high-temperature superconducting composites

被引：3

作者：

Bruneel, E

Ramirez-Cuesta, AJ

Van Driessche, I

Hoste, S

机构：

[1] State Univ Ghent, Dept Inorgan & Phys Chem, Solid State & Supercond Mat Div, B-9000 Ghent, Belgium

[2] Univ Reading, Dept Chem, Reading RG6 6AD, Berks, England

来源：

PHYSICAL REVIEW B | 2000年 / 61卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.61.9176

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A simple model is proposed to analyze the relationship between susceptibility and composition in superconducting composites. The model is based on a random distribution of superconducting and nonsuperconducting phases and on the occurrence of shielding when a nonsuperconducting area is encapsulated by superconducting material. A three-dimensional simulation based on percolation theory is in agreement with our experimental data on a series of MgO-superconductor composites. A predicted percolation effect was observed and a maximum in shielding efficiency was determined.

引用

页码：9176 / 9180

页数：5

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