Measurement of Polar Anchoring Coefficient for Nematic Cell with High Pretilt AngleApplied Physics Letters
- director distribution,
- wall interface,
AbstractA method to determine the surface anchoring energy of a nematic liquid crystal is proposed. The technique implies the measurements of optical retardation of a nematic cell as a function of a strength and direction of the applied magnetic field. It enables one to get both pretilt angle α and anchoring coefficient W a in the course of the same experiment. As an example, both parameters (α=10.9° and W a =1.5×10−5 J/m2) are measured at the interface between the nematic 5CB and rubbed polyimide film.
Citation InformationDarius Subacius, V. M. Pergamenshchik and Oleg Lavrentovich. "Measurement of Polar Anchoring Coefficient for Nematic Cell with High Pretilt Angle" Applied Physics Letters Vol. 67 Iss. 2 (1995) p. 214 - 216
Available at: http://works.bepress.com/oleg_lavrentovich/15/