|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'500'096
Articles rated: 2609
19 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Theory of elastic interaction between colloidal particles in the nematic cell in the presence of the external electric or magnetic field | | S. B. Chernyshuk
; O.M. Tovkach
; B. I. Lev
; | | Date: |
14 Sep 2011 | | Abstract: | The Green function method developed in Ref.[S. B. Chernyshuk and B. I. Lev,
Phys. Rev. E extbf{81}, 041707 (2010)] is used to describe elastic
interactions between axially symmetric colloidal particles in the nematic cell
in the presence of the external electric or magnetic field. General formulas
for dipole-dipole, dipole-quadrupole and quadrupole-quadrupole interactions in
the homeotropic and planar nematic cells with parallel and perpendicular field
orientations are obtained. A set of new results has been predicted: 1)
extit{Deconfinement effect} for dipole particles in the homeotropic nematic
cell with negative dielectric anisotropy $Deltaepsilon<0$ and perpendicular
to the cell electric field, when electric field is approaching it’s Frederiks
threshold value $ERightarrow E_{c}$. This means cancellation of the
confinement effect found in Ref. [M.Vilfan et al. Phys.Rev.Lett. {f 101},
237801, (2008)] for dipole particles near the Frederiks transition while it
remains for quadrupole particles. 2) New effect of extit{attraction and
stabilization} of the particles along the electric field parallel to the cell
planes in the homeotropic nematic cell with $Deltaepsilon<0$ . The minimun
distance between two particles depends on the strength of the field and can be
ordinary for . 3) Attraction and repulsion zones for all elastic interactions
are changed dramatically under the action of the external field. | | Source: | arXiv, 1109.3204 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser claudebot
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER