The director field distribution with the strongly pinned alignment in nematic structures at the polymer surface

Описание

Тип публикации: статья из журнала

Год издания: 2015

Идентификатор DOI: 10.1080/02678292.2014.960904

Ключевые слова: orientational order, disclination, adsorption, nematic, polymer surface, director configuration, adsorption, director configuration, disclination, nematic, orientational order, polymer surface

Аннотация: We investigate orientational nematic liquid crystal structures that form at the polymer surface due to adsorption, their stability against the schlieren texture and features of point and linear singularities in them. We demonstrate that surface disclination lines, which also occur due to molecular adsorption, can lead to azimuthal Показать полностьюanchoring of a bulk layer and make the singularities with the charge m=+/- 1 stable. We consider the director field distribution in a nematic layer as a result of the combination of two aligning factors, which are the linear disclination that tend to impose uniform planar ordering and point defects that impart the radial configuration to the director. With the use of the calculation, we analyse the energies of elastic distortions of the director field for the radial-planar, radial-homeotropic and radial-radial configurations, depending on the nematic layer thickness.

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Издание

Журнал: LIQUID CRYSTALS

Выпуск журнала: Vol. 42, Is. 1

Номера страниц: 57-64

ISSN журнала: 02678292

Место издания: ABINGDON

Издатель: TAYLOR & FRANCIS LTD

Авторы

  • Parshin Alexander M. (Russian Acad Sci, LV Kirensky Phys Inst, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk, Russia; Siberian Fed Univ, Dept Energy, Krasnoyarsk, Russia)
  • Zyryanov Victor Y. (Russian Acad Sci, LV Kirensky Phys Inst, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk, Russia)
  • Shabanov Vasily F. (Russian Acad Sci, LV Kirensky Phys Inst, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk, Russia)

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