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Frequency dependence of the threshold voltage of the Freedericksz effect in nematic and nematic reentrant phases

✍ Scribed by Dr. A. Hauser; Dr. H. Kresse; Dr. G. Pelzl; Doz. Dr. habil. D. Demus

Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
240 KB
Volume
16
Category
Article
ISSN
0232-1300

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✦ Synopsis

Abstract

In four substances exhibiting reentrant nematic phases the threshold voltage of the Freedericksz transition was measured as function of the frequency in the nematic and reentrant nematic phases. The isotropy frequency and the relaxation frequency were calculated using the experimental data. We found that extrapolated to the same temperature the relaxation frequency of the reentrant nematic phase is larger than that of the nematic phase.

πŸ“œ SIMILAR VOLUMES

Monte Carlo simulation of the FrΓ©ederick
Monte Carlo simulation of the FrΓ©edericksz transition in nematic liquid crystals
✍ W. Turalski; A. Miniewicz; A. C. Mitus πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 868 KB

In this paper we present results of the Monte Carlo simulation of a 2D nematic liquid crystal model in the presence of an externally applied electric field. The molecular interactions were described by the Lebwohl -Lasher Hamiltonian. The boundary conditions employed in the simulations corresponded