Determination of the anisotropic potential at the nematic liquid crystal-to-wall interface
- 1 July 1983
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 43 (1), 62-64
- https://doi.org/10.1063/1.94121
Abstract
The integrated birefringence of a surfactant (C16H33NH2)-aligned methoxybenzylidene butylaniline cell as a function of applied magnetic field (up to 100 kG) has been measured. The Oseen and Frank elastic continuum theory and a generalized torque balance equation at the interface have been utilized for the calculation to fit the measured data. A very good fit to the data was obtained using an anisotropic liquid crystal-to-wall interfacial potential of the form C cos2 θ+C4 cos4 θ for the calculation. It was found that C4/C=−0.38.Keywords
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