Home > Research > Publications & Outputs > Revealing the uniaxial to biaxial nematic liqui...

Research

Links

Text available via DOI:

Keywords

View graph of relations

Revealing the uniaxial to biaxial nematic liquid crystal phase transition via distinctive electroconvection

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Published

Standard

Revealing the uniaxial to biaxial nematic liquid crystal phase transition via distinctive electroconvection. / Xiang, Ying; Goodby, J. W.; Goertz, V. et al.
In: Applied Physics Letters, Vol. 94, No. 19, 193507, 11.05.2009.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Xiang, Y, Goodby, JW, Goertz, V & Gleeson, HF 2009, 'Revealing the uniaxial to biaxial nematic liquid crystal phase transition via distinctive electroconvection', Applied Physics Letters, vol. 94, no. 19, 193507. https://doi.org/10.1063/1.3138867

APA

Xiang, Y., Goodby, J. W., Goertz, V., & Gleeson, H. F. (2009). Revealing the uniaxial to biaxial nematic liquid crystal phase transition via distinctive electroconvection. Applied Physics Letters, 94(19), Article 193507. https://doi.org/10.1063/1.3138867

Vancouver

Xiang Y, Goodby JW, Goertz V, Gleeson HF. Revealing the uniaxial to biaxial nematic liquid crystal phase transition via distinctive electroconvection. Applied Physics Letters. 2009 May 11;94(19):193507. doi: 10.1063/1.3138867

Author

Xiang, Ying ; Goodby, J. W. ; Goertz, V. et al. / Revealing the uniaxial to biaxial nematic liquid crystal phase transition via distinctive electroconvection. In: Applied Physics Letters. 2009 ; Vol. 94, No. 19.

Bibtex

@article{8ba8f4f2453f4320b6d1e1d01ca850a3,
title = "Revealing the uniaxial to biaxial nematic liquid crystal phase transition via distinctive electroconvection",
abstract = "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.",
keywords = "convection, electrical conductivity, electrohydrodynamics, flow instability, liquid crystal phase transformations, nematic liquid crystals, SPLAY-FREEDERICKSZ TRANSITION",
author = "Ying Xiang and Goodby, {J. W.} and V. Goertz and Gleeson, {H. F.}",
year = "2009",
month = may,
day = "11",
doi = "10.1063/1.3138867",
language = "English",
volume = "94",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Inc.",
number = "19",

}

RIS

TY - JOUR

T1 - Revealing the uniaxial to biaxial nematic liquid crystal phase transition via distinctive electroconvection

AU - Xiang, Ying

AU - Goodby, J. W.

AU - Goertz, V.

AU - Gleeson, H. F.

PY - 2009/5/11

Y1 - 2009/5/11

N2 - 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.

AB - 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.

KW - convection

KW - electrical conductivity

KW - electrohydrodynamics

KW - flow instability

KW - liquid crystal phase transformations

KW - nematic liquid crystals

KW - SPLAY-FREEDERICKSZ TRANSITION

U2 - 10.1063/1.3138867

DO - 10.1063/1.3138867

M3 - Journal article

VL - 94

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 19

M1 - 193507

ER -