This article is cited in 8 papers

CONDENSED MATTER

Local-field anisotropy in cholesteric liquid crystals

E. M. Aver'yanov

L. V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences

Abstract: The first experimental values of the Lorentz tensor components L _j for the cholesteric and smectic A phases of derivatives of cholesterol have been obtained using the dispersion of the refractive indices in the visible range. The temperature dependence of the components L _j has been determined; it is invariant with respect to the cholesteric-smectic A phase transition. The effect of the isotropization of the Lorentz and local field tensors with decreasing anisotropy of the molecular polarizability has been revealed.

PACS: 42.70.Df, 61.30.Cz, 64.70.Md, 78.20.-e

Received: 24.02.2009

 English version: Journal of Experimental and Theoretical Physics Letters, 2009, 89:7, 324–327

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