TIME-DEPENDENT FRICTION ON A CHARGED TRACER IN A BROWNIAN MULTICOMPONENT PLASMA

被引：24

作者：

DELEON, GC

MEDINANOYOLA, M

ALARCONWAESS, O

RUIZESTRADA, H

机构：

[1] UNIV AMERICAS PUEBLA, DEPT FISICOMATEMAT, PUEBLA 72820, MEXICO

[2] UNIV AUTONOMA PUEBLA, ESCUELA CIENCIAS FISICOMATEMAT, PUEBLA 72001, MEXICO

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 207卷 / 4-6期

关键词：

D O I：

10.1016/0009-2614(93)89003-Z

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

From the generalized Langevin equation theory of tracer diffusion, we derive approximate analytic expressions for the dynamic friction function of a finite-sized charged tracer undergoing Brownian motion in a multicomponent ionic solution of point-like ions. We find that results such as Schurr's expression for the static friction of a colloidal macroion, Onsager's limiting law of the relaxation effect in ionic solutions, and Hess and Klein's result for dynamic self-friction in the Brownian one-component plasma, follow as particular cases, or limits, within well-defined approximations.

引用

页码：294 / 300

页数：7

共 21 条

[1] SEDIMENTATION POTENTIAL AND VELOCITY OF SOLID SPHERICAL PARTICLES [J].