Revealing the uniaxial to biaxial nematic liquid crystal phase transition via distinctive electroconvection
Revealing the uniaxial to biaxial nematic liquid crystal phase transition via distinctive electroconvection
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通过独特的电对流揭示单轴到双轴向列液晶相变
DOI:
10.1063/1.3138867
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发表时间:
2009-05
影响因子:
4
通讯作者:
H. F. Gleeson
中科院分区:
文献类型:
--
作者:
项颖;H. F. Gleeson
Electroconvection (EC) phenomena are reported in the uniaxial and biaxial nematic phases of a bent-core liquid crystal. Two EC instabilities are observed. Prewavy_1, which exists only in the uniaxial phase, has stripes parallel to the rubbing direction, a periodicity of order of the device thickness, and an onset voltage that diverges near the uniaxial to biaxial transition. The prewavy_2 instability, characterized by stripes perpendicular to the rubbing direction and a periodicity of twice the device thickness, exists across the entire nematic regime. Our observations are explained through changes in the electrical conductivity anisotropy at the uniaxial to biaxial transition.
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DOI:
10.1103/physreve.70.011711
发表时间:
2004-07
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
作者:
Elżbieta Kochowska;S. Németh;G. Pelzl;A. Buka
通讯作者:
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DOI:
10.1140/epje/i2007-10207-3
发表时间:
2007-09
期刊:
The European Physical Journal E
影响因子:
--
作者:
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通讯作者:
R. Stannarius;J. Heuer
DOI:
10.1063/1.2815804
发表时间:
2008-01
期刊:
The Journal of chemical physics
影响因子:
--
作者:
R. Berardi;L. Muccioli;C. Zannoni
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DOI:
10.1063/1.3069010
发表时间:
1974-02
期刊:
--
影响因子:
--
作者:
P. D. Gennes;Richard Alben
通讯作者:
P. D. Gennes;Richard Alben
影响因子:
2.4
作者:
S. Rudroff;V. Frette;I. Rehberg
通讯作者:
S. Rudroff;V. Frette;I. Rehberg