DIELECTRIC CHARACTER DUE TO THE PERCOLATIVE GROWTH OF CLUSTERS IN A METAL-CERAMICS MIXTURE

被引：8

作者：

YOSHIDA, K

机构：

[1] Institute of Atomic Energy, Kyoto University, Uji, Kyoto

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1991年 / 30卷 / 12A期

关键词：

PERCOLATION; DIELECTRIC CHARACTER; METAL-CERAMICS MIXTURE; CLUSTER GROWTH; EFFECTIVE MEDIUM MODELS; CRITICAL EXPONENT;

D O I：

10.1143/JJAP.30.3482

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The dielectric property was measured to observe growth of metallic clusters in Nb-Al2O3 sintered mixtures with Nb volume fraction f ranging from 0 to 0.15. As Nb clusters grow large, the effective dielectric constant epsilon* (or capacitance) increases to diverge, reflecting the occurrence of the percolation transition at around f = 0.15. The power law was found to hold for epsilon* with a critical exponent of 0.6.

引用

页码：3482 / 3483

页数：2

共 5 条

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