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Phase diagrams of orientational transitions in absorbing nematic liquid crystals

  • Statistical, Nonlinear, and Soft Matter Physics
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Abstract

A theory of orientational transitions in nematic liquid crystals (NLCs), which employs the expansion of optical torques acting on the NLC director with respect to the rotation angle, has been developed for NLCs with additives of conformationally active compounds under the action of optical and low-frequency electric and magnetic fields. Phase diagrams of NLCs are constructed as a function of the intensity and polarization of the light field, the strength of low-frequency electric field, and a parameter that characterizes the feedback between the rotation of the NLC director and optical torque. Conditions for the occurrence of first- and second-order transitions are determined. The proposed theory agrees with available experimental data.

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Authors and Affiliations

  1. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991, Russia

    A. S. Zolot’ko, V. N. Ochkin, M. P. Smayev & S. A. Shvetsov

  2. Moscow Institute of Physics and Technology (State University), Dolgoprudnyi, Moscow oblast, 141700, Russia

    S. A. Shvetsov

Authors
  1. A. S. Zolot’ko
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  2. V. N. Ochkin
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  3. M. P. Smayev
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  4. S. A. Shvetsov
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Correspondence to A. S. Zolot’ko.

Additional information

Original Russian Text © A.S. Zolot’ko, V.N. Ochkin, M.P. Smayev, S.A. Shvetsov, 2015, published in Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2015, Vol. 147, No. 5, pp. 1045–1052.

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Zolot’ko, A.S., Ochkin, V.N., Smayev, M.P. et al. Phase diagrams of orientational transitions in absorbing nematic liquid crystals. J. Exp. Theor. Phys. 120, 905–911 (2015). https://doi.org/10.1134/S1063776115040196

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  • DOI: https://doi.org/10.1134/S1063776115040196

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