Local dielectric permittivity near an interface

被引:18
作者
Ballenegger, V [1 ]
Hansen, JP [1 ]
机构
[1] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England
来源
EUROPHYSICS LETTERS | 2003年 / 63卷 / 03期
关键词
D O I
10.1209/epl/i2003-00464-8
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A statistical mechanics expression is derived for the space-dependent dielectric permittivity of a polar solvent near an interface. The asymptotic behaviour of this local permittivity is calculated in the low-density limit, near a planar interface. The potential of mean force between two ions is shown to agree with the prediction of macroscopic electrostatics for large separations parallel to the interface.
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页码:381 / 387
页数:7
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