RANDOM-WALKS AND THE DOUBLE-LAYER IMPEDANCE

被引：18

作者：

HALSEY, TC

LEIBIG, M

机构：

[1] UNIV CHICAGO,DEPT PHYS,CHICAGO,IL 60637

[2] BOSTON UNIV,DEPT PHYS,BOSTON,MA 02215

来源：

EUROPHYSICS LETTERS | 1991年 / 14卷 / 08期

关键词：

SURFACE DOUBLE LAYERS; SCHOTTKY BARRIERS; AND WORK FUNCTIONS; COMPUTATIONAL TECHNIQUES; ELECTROCHEMISTRY AND ELECTROPHORESIS;

D O I：

10.1209/0295-5075/14/8/016

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The double-layer impedance between a perfectly polarizable metallic electrode and an electrolyte exhibits anomalous behavior as a function of frequency omega. This behavior is related to the surface roughness of the electrode. We introduce a random walk algorithm for calculating this frequency behavior as a power series in (1-i-omega)-1. In two limits the coefficients appearing in this series can be related directly to properties of the electrode surface. We apply this algorithm to the calculation of the impedance of a two-dimensional slot: the calculated impedance shows the expected omega-1/2 constant-phase angle (CPA) behavior.

引用

页码：815 / 820

页数：6

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