CONDENSED MATTER

New manifestation of the statistical nature of orientation ordering in impure nematics

E. M. Aver'yanov^a, V. G. Rumyantsev<sup>b

a</sup> L. V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk
^b Scientific Research Institute of Organic Intermediates and Dyes

Abstract: It is found that the splitting of polarized electron absorption bands of impurity dye molecules is inverted with temperature in a nematic liquid-crystal matrix. This effect is caused by the statistical nature of orientation ordering of impurity molecules and by the manifestation of higher order moments of the orientation distribution function.

PACS: 42.70.Df, 61.30.Cz, 61.30.Gd, 78.40.Me

Received: 27.05.2002

 English version: Journal of Experimental and Theoretical Physics Letters, 2002, 76:1, 40–43

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