CONDUCTIVITY AND DIELECTRIC-CONSTANT IN A WEDGE-SHAPED PT-FILM PERCOLATION SYSTEM

被引：10

作者：

YE, GX

XU, YQ

GE, HL

JIAO, ZK

ZHANG, QR

机构：

[1] Department of Physics, Zhejiang University, Hangzhou

来源：

PHYSICS LETTERS A | 1995年 / 198卷 / 03期

关键词：

D O I：

10.1016/0375-9601(94)00995-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A wedge-shaped Pt-film percolation system was prepared by the magnetron sputtering method. A new nonlinear I-V behavior was found and can be well explained by the location-dependent hopping effect. Power-law behavior, sigma (omega) alpha omega(x) and epsilon (omega) alpha omega(-y), is observed near the percolation threshold. The exponents x and y are found to be 0.87 +/- 0.04 and 0.08 +/- 0.03, respectively, in agreement with the general scaling relation x + y = 1.

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页码：251 / 255

页数：5

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