Surface and flexoelectric polarization in a nematic liquid crystal directly measured by a pyroelectric technique

Blinov, Lev M.; Barnik, Mikhail I.; Ozaki, Masanori et al.

Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 2000, 62(6), 8091-8099

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Identifier to cite or link to this item: https://hdl.handle.net/11094/75862

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Title
Surface and flexoelectric polarization in a nematic liquid crystal directly measured by a pyroelectric technique
Creator
CreatorName
Blinov, Lev M.
CreatorName
Barnik, Mikhail I.
NRID
1000050204186 1000050204186
ORCID
0000-0002-9556-4225 0000-0002-9556-4225
researchmap permalink
read0014092 read0014092
Scopus Author ID
55490143900 55490143900
CreatorName
Ozaki, Masanori
CreatorName
Shtykov, N. M.
NRID
1000070029205 1000070029205
CreatorName
Yoshino, Katsumi
Abstract
An alternative, pyroelectric effect based technique was developed for the direct measurement of the surface polarization in homogeneously and homeotropically oriented nematic cells as well as for the measurement of the flexoelectric polarization in hybrid aligned nematic cells. The pyroelectric response was measured with a modulated beam of a diode laser, absorbed by a dye incorporated in a standard liquid crystal 4-pentyl4´-cyanobiphenyl. The dye provided a gradient of the temperature increment along the cell normal, which allowed for the separation of pyroelectric contributions from both the opposite surfaces and the bulk. The signs and absolute magnitude of the polarizations mentioned have been found over the entire temperature range of the nematic phase.
Publisher
American Physical Society
Source Title
Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume (Issue)
62(6)
Page
8091-8099
Date of Issued
2000-12-01
Language
English
Handle URL
https://hdl.handle.net/11094/75862
PISSN
24700045
eISSN
24700053
NCID
AA11558033
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1103/PhysRevE.62.8091
Access Rights
open access
CopyRight
Copyright (2000) by the American Physical Society
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article