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
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Electro-optic and dynamic studies of biphenyl benzoate ferroelectric liquid crystals Electro-optic and dynamic studies of biphenyl benzoate ferroelectric liquid crystals](/preview/png/1812872.png)
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
Journal: Physica B: Condensed Matter - Volume 405, Issue 9, 1 May 2010, Pages 2151–2156
نویسندگان
J. Hemine, A. Daoudi, C. Legrand, A. El kaaouachi, A. Nafidi, M. Ismaili, N. Isaert, H.T. Nguyen,