Dielectric Technique to Measure the Twist Elastic Constant of Liquid Crystals: The Case of a Bent-Core MaterialPhysical Review E
AbstractThe effect of director pretilt on the twist magnetic Freedericksz transition of nematics was investigated in a planar cell. The director configuration was calculated as a function of magnetic inductance. The dielectric and optical response of the nematic liquid crystal was numerically modeled. A dielectric measurement method for determining the elastic constant K-22 is presented. The influence of the conditions for the Mauguin effect is discussed. The theoretical predictions were confirmed by our experiments. Experimental data for all elastic constants of a bent-core nematic material are presented and discussed.
Citation InformationPeter Salamon, Nandor Éber, J. Seltmann, M. Lehmann, et al.. "Dielectric Technique to Measure the Twist Elastic Constant of Liquid Crystals: The Case of a Bent-Core Material" Physical Review E Vol. 85 Iss. 6 (2012)
Available at: http://works.bepress.com/antal_jakli/43/