Brief Communications

Dependences of the parameters of the liquid-crystal order on the molecular hyperpolarizability

G. A. Lyakhov, Yu. P. Svirko, I. M. Fedotova


Abstract: An anharmonic oscillator model of an anisotropic molecule is used to calculate the changes in the temperature of a nematic phase transition and in the pitch of a cholesteric helix as a function of the cubic hyperpolarizability. The results obtained are used to explain the nonmesogenic nature of anisotropic molecules with an internal (intramolecular) charge transfer.

UDC: 532.783

PACS: 61.30.Cz, 64.70.Ew

Received: 23.03.1982

 English version: Soviet Journal of Quantum Electronics, 1982, 12:11, 1525–1526

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