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Electrostatics in the presence of spherical dielectric discontinuities.

Linse, Per LU (2008) In Journal of Chemical Physics 128(21).
Abstract
A united description of the electrostatics of an arbitrary number of electrostatic multipoles, each localized in a spherical dielectric cavity, in a dielectric medium is presented. The permanent charges as well as the polarization surface charges are described by multipole expansions in standard format. Expressions of the polarization surface charge density, the electrostatic potential energy, and the electrostatic interaction including the contribution from the polarization surface charge densities are given. Interacting electrostatic multipoles in dielectric spheres immersed in a medium with a higher (lower) relative dielectric permittivity experience a repulsive (attractive) potential term that increases in magnitude at reduced... (More)
A united description of the electrostatics of an arbitrary number of electrostatic multipoles, each localized in a spherical dielectric cavity, in a dielectric medium is presented. The permanent charges as well as the polarization surface charges are described by multipole expansions in standard format. Expressions of the polarization surface charge density, the electrostatic potential energy, and the electrostatic interaction including the contribution from the polarization surface charge densities are given. Interacting electrostatic multipoles in dielectric spheres immersed in a medium with a higher (lower) relative dielectric permittivity experience a repulsive (attractive) potential term that increases in magnitude at reduced multipole separation, originating from the polarization surface charges appearing at the dielectric interfaces. Simplified expressions applied to monopoles and to two dielectric cavities are provided. Numerical examples involving monopoles and dipoles quantifying the effect of the surface polarization are also included. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Chemical Physics
volume
128
issue
21
publisher
American Institute of Physics
external identifiers
  • wos:000256527500024
  • pmid:18537431
  • scopus:44949167483
ISSN
0021-9606
DOI
10.1063/1.2908077
language
English
LU publication?
yes
id
ab78d7f8-0897-4338-88ef-8248d9aa7e12 (old id 1169050)
date added to LUP
2009-03-09 11:51:33
date last changed
2017-01-01 04:53:15
@article{ab78d7f8-0897-4338-88ef-8248d9aa7e12,
  abstract     = {A united description of the electrostatics of an arbitrary number of electrostatic multipoles, each localized in a spherical dielectric cavity, in a dielectric medium is presented. The permanent charges as well as the polarization surface charges are described by multipole expansions in standard format. Expressions of the polarization surface charge density, the electrostatic potential energy, and the electrostatic interaction including the contribution from the polarization surface charge densities are given. Interacting electrostatic multipoles in dielectric spheres immersed in a medium with a higher (lower) relative dielectric permittivity experience a repulsive (attractive) potential term that increases in magnitude at reduced multipole separation, originating from the polarization surface charges appearing at the dielectric interfaces. Simplified expressions applied to monopoles and to two dielectric cavities are provided. Numerical examples involving monopoles and dipoles quantifying the effect of the surface polarization are also included.},
  articleno    = {214505},
  author       = {Linse, Per},
  issn         = {0021-9606},
  language     = {eng},
  number       = {21},
  publisher    = {American Institute of Physics},
  series       = {Journal of Chemical Physics},
  title        = {Electrostatics in the presence of spherical dielectric discontinuities.},
  url          = {http://dx.doi.org/10.1063/1.2908077},
  volume       = {128},
  year         = {2008},
}