Advanced

Anisotropic electric fluctuations in polar liquids under spherical confinement

Stenhammar, Joakim LU ; Linse, Per LU and Karlström, Gunnar LU (2011) 8th Liblice Conference on the Statistical Mechanics of LIquids In Molecular Physics 109(1). p.11-20
Abstract
The anisotropic local electric fluctuations within a nanoscopic sphere of a polar fluid surrounded by vacuum are analysed using dielectric theory and molecular simulation. The electric fluctuations are characterized through the mean-square multipole moments (Q(l)(2)), which are related to the dielectric constant of the fluid. The results show that the fluctuations are suppressed close to the fluid boundary, with a stronger effect on the fluctuations perpendicular as compared to those parallel to the surface. Furthermore, the effect becomes weaker and more short-ranged as the order l of the fluctuating multipole moments is increased. The agreement between the results from dielectric theory and those from molecular simulations are... (More)
The anisotropic local electric fluctuations within a nanoscopic sphere of a polar fluid surrounded by vacuum are analysed using dielectric theory and molecular simulation. The electric fluctuations are characterized through the mean-square multipole moments (Q(l)(2)), which are related to the dielectric constant of the fluid. The results show that the fluctuations are suppressed close to the fluid boundary, with a stronger effect on the fluctuations perpendicular as compared to those parallel to the surface. Furthermore, the effect becomes weaker and more short-ranged as the order l of the fluctuating multipole moments is increased. The agreement between the results from dielectric theory and those from molecular simulations are satisfactory, in spite of the inhomogeneous density of the molecular system. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
polar liquids, confined liquids, dielectric properties
in
Molecular Physics
volume
109
issue
1
pages
11 - 20
publisher
Taylor & Francis
conference name
8th Liblice Conference on the Statistical Mechanics of LIquids
external identifiers
  • wos:000286924300003
  • scopus:79551562236
ISSN
0026-8976
1362-3028
DOI
10.1080/00268976.2010.506693
language
English
LU publication?
yes
id
e15f302c-4b43-4444-be4b-6b5d23217016 (old id 1869019)
date added to LUP
2011-04-27 12:46:59
date last changed
2017-01-01 03:33:14
@inproceedings{e15f302c-4b43-4444-be4b-6b5d23217016,
  abstract     = {The anisotropic local electric fluctuations within a nanoscopic sphere of a polar fluid surrounded by vacuum are analysed using dielectric theory and molecular simulation. The electric fluctuations are characterized through the mean-square multipole moments (Q(l)(2)), which are related to the dielectric constant of the fluid. The results show that the fluctuations are suppressed close to the fluid boundary, with a stronger effect on the fluctuations perpendicular as compared to those parallel to the surface. Furthermore, the effect becomes weaker and more short-ranged as the order l of the fluctuating multipole moments is increased. The agreement between the results from dielectric theory and those from molecular simulations are satisfactory, in spite of the inhomogeneous density of the molecular system.},
  author       = {Stenhammar, Joakim and Linse, Per and Karlström, Gunnar},
  booktitle    = {Molecular Physics},
  issn         = {0026-8976},
  keyword      = {polar liquids,confined liquids,dielectric properties},
  language     = {eng},
  number       = {1},
  pages        = {11--20},
  publisher    = {Taylor & Francis},
  title        = {Anisotropic electric fluctuations in polar liquids under spherical confinement},
  url          = {http://dx.doi.org/10.1080/00268976.2010.506693},
  volume       = {109},
  year         = {2011},
}