Abstract
A general theory of the dielectric constant of nematic liquid crystal mixtures is presented including the particular case of nematics doped with polar nanoparticles. The results are used to estimate the contribution of chains of polar nanoparticles to the static dielectric anisotropy and birefringence of the nematic composite taking into account contributions from chains of different lengths. The dependence of the dielectric anisotropy on the dipolar interaction strength is considered in detail and it is shown that formation of polar chains of nanoparticles enables one to explain a significant increase of the dielectric constant of the composite as observed experimentally.
| Language | English |
|---|---|
| Article number | 032501 |
| Number of pages | 8 |
| Journal | Physical Review E |
| Volume | 92 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 3 Sep 2015 |
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Keywords
- anisotropy
- chains
- liquid crystals
- nematic liquid crystals
- dielectric anisotropies
- dipolar interaction
- general theory
- nanoparticle chains
- nematic liquid crystal mixtures
- nematics
- polar chain
Cite this
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Effect of nanoparticle chain formation on dielectric anisotropy of nematic composites. / Osipov, M. A.; Gorkunov, M. V.
In: Physical Review E, Vol. 92, No. 3, 032501, 03.09.2015.Research output: Contribution to journal › Article
TY - JOUR
T1 - Effect of nanoparticle chain formation on dielectric anisotropy of nematic composites
AU - Osipov, M. A.
AU - Gorkunov, M. V.
PY - 2015/9/3
Y1 - 2015/9/3
N2 - A general theory of the dielectric constant of nematic liquid crystal mixtures is presented including the particular case of nematics doped with polar nanoparticles. The results are used to estimate the contribution of chains of polar nanoparticles to the static dielectric anisotropy and birefringence of the nematic composite taking into account contributions from chains of different lengths. The dependence of the dielectric anisotropy on the dipolar interaction strength is considered in detail and it is shown that formation of polar chains of nanoparticles enables one to explain a significant increase of the dielectric constant of the composite as observed experimentally.
AB - A general theory of the dielectric constant of nematic liquid crystal mixtures is presented including the particular case of nematics doped with polar nanoparticles. The results are used to estimate the contribution of chains of polar nanoparticles to the static dielectric anisotropy and birefringence of the nematic composite taking into account contributions from chains of different lengths. The dependence of the dielectric anisotropy on the dipolar interaction strength is considered in detail and it is shown that formation of polar chains of nanoparticles enables one to explain a significant increase of the dielectric constant of the composite as observed experimentally.
KW - anisotropy
KW - chains
KW - liquid crystals
KW - nematic liquid crystals
KW - dielectric anisotropies
KW - dipolar interaction
KW - general theory
KW - nanoparticle chains
KW - nematic liquid crystal mixtures
KW - nematics
KW - polar chain
UR - http://www.scopus.com/inward/record.url?scp=84942305521&partnerID=8YFLogxK
UR - http://journals.aps.org/pre/
U2 - 10.1103/PhysRevE.92.032501
DO - 10.1103/PhysRevE.92.032501
M3 - Article
VL - 92
JO - Physical Review E
T2 - Physical Review E
JF - Physical Review E
SN - 1539-3755
IS - 3
M1 - 032501
ER -