Electric field-induced transition from the twist grain boundary TGBA phase to the tilted smectic SmC* phase

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作者：

Technical Univ Berlin, Berlin, Germany ^{[1
]}

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来源：

Ferroelectrics | / 1 -4 pt 2卷 / 61-80期

关键词：

Dynamics - Electric field effects - Electrooptical effects - Grain boundaries - Phase diagrams - Smectic liquid crystals - Textures;

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摘要：

The behavior of a twist grain boundary (TGB) phase under the influence of an electric field is studied. The TGBA modification of the investigated compound (14P1M7) shows a shift of the wavelength of selective reflection, a stabilization of the filament texture with respect to the Grandjean texture, and a transition from the TGBA to the SmC* phase due to the influence of external fields. The phase diagram in the (electric field, temperature) plane, the electrooptic response of different field-induced SmC* textures, and the dynamic behavior are studied in detail.

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