کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1812872 1025626 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electro-optic and dynamic studies of biphenyl benzoate ferroelectric liquid crystals
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Electro-optic and dynamic studies of biphenyl benzoate ferroelectric liquid crystals
چکیده انگلیسی

We present electro-optic and dynamic properties on three homologous of biphenyl benzoate series of ferroelectric liquid crystals (FLCs) exhibiting the chiral smectic C phase (SmC*). The three compounds present high spontaneous polarization and show the SmC*–SmA*–N* phase sequence. Dielectric spectroscopy was used to provide the dynamics and dipolar ordering of the ferroelectric phase. The Goldstone relaxation mode was studied for sample cells on planar geometry without a DC bias voltage. The rotational viscosity corresponding to molecular motions in the SmC* phase was determined from dielectric measurements. The Arrhenius-type behavior of the rotational viscosity was found and the corresponding activation energies were evaluated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 405, Issue 9, 1 May 2010, Pages 2151–2156
نویسندگان
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