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Article
Dielectric Technique to Measure the Twist Elastic Constant of Liquid Crystals: The Case of a Bent-Core Material
Physical Review E
  • Peter Salamon
  • Nandor Éber
  • J. Seltmann
  • M. Lehmann
  • Jim T. Gleeson
  • Samuel N. Sprunt
  • Antal Jákli, Kent State University - Kent Campus
Publication Date
6-14-2012
Document Type
Article
Disciplines
Abstract
The 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.
Comments
Copyright 2012 American Physical Society. Available on publisher's site at http://dx.doi.org/10.1103/PhysRevE.85.061704.
Citation Information
Peter 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/