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Influence of structure in heterodyne electrophoretic light scattering.

Medebach, Martin LU (2012) In Journal of Chemical Physics 136(4).
Abstract
Heterodyne light scattering is employed to probe the electrophoretic flow behavior of a concentrated, deionized model colloidal suspension. Both for the fluid and crystalline regime, the power spectra are well described as velocity distributions, which let assume that the power spectra are dominated by the self-dynamic structure factor. Furthermore, all measured power spectra show an increase of the frequency integrated intensity with the electric field. Since the number of particles should remain constant this finding is unexpected. These effects are rationalized on the basis of a new theoretical model including the influence of the structure factor and of the mobility polydispersity on the power spectra.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Chemical Physics
volume
136
issue
4
publisher
American Institute of Physics
external identifiers
  • wos:000299793700014
  • pmid:22299864
  • scopus:84861601466
ISSN
0021-9606
DOI
10.1063/1.3678315
language
English
LU publication?
yes
id
3e2a15d0-d5cb-4a86-9ec6-6a6846024323 (old id 2367402)
date added to LUP
2012-03-06 17:18:53
date last changed
2017-06-11 03:22:27
@article{3e2a15d0-d5cb-4a86-9ec6-6a6846024323,
  abstract     = {Heterodyne light scattering is employed to probe the electrophoretic flow behavior of a concentrated, deionized model colloidal suspension. Both for the fluid and crystalline regime, the power spectra are well described as velocity distributions, which let assume that the power spectra are dominated by the self-dynamic structure factor. Furthermore, all measured power spectra show an increase of the frequency integrated intensity with the electric field. Since the number of particles should remain constant this finding is unexpected. These effects are rationalized on the basis of a new theoretical model including the influence of the structure factor and of the mobility polydispersity on the power spectra.},
  articleno    = {044201},
  author       = {Medebach, Martin},
  issn         = {0021-9606},
  language     = {eng},
  number       = {4},
  publisher    = {American Institute of Physics},
  series       = {Journal of Chemical Physics},
  title        = {Influence of structure in heterodyne electrophoretic light scattering.},
  url          = {http://dx.doi.org/10.1063/1.3678315},
  volume       = {136},
  year         = {2012},
}