Pyroelectric and electromechanical properties of the antiferroelectric liquid crystal MHPOBC
Pyroelectric and electromechanical properties of the antiferroelectric liquid crystal MHPOBC
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DOI：
10.1134/1.1884680
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发表时间：
2005-02
影响因子：
1.1
通讯作者：
S. V. Yablonskii;K. Nakano;M. Ozaki;K. Yoshino
中科院分区：
文献类型：
--
作者：
S. V. Yablonskii;K. Nakano;M. Ozaki;K. Yoshino
研究了反铁电液晶原型4-（1-甲基庚氧基羰基苯基）-4 ′-辛基联苯-4-羧酸酯（MHPOBC）的热电效应和机电效应。MHPOBC自由悬浮液晶膜中的线性机电效应已被检测到在广泛的温度范围内，包括反铁电SmCA* 以及顺电SmA。发现SmCβ* 的磁滞回线在（热释电系数，直流偏置电压）坐标系中的反常行为。
We study pyroelectric and electromechanical effects in the prototype antiferroelectric liquid crystal 4-(1-methylheptyloxycarbonyl-phenyl)4′-octylbiphenil-4-carboxylate (MHPOBC). The linear electromechanical effect in the freely suspended liquid crystal films of MHPOBC has been detected in the broad temperature range inclusive of the antiferroelectric SmCA*as well as paraelectric SmA. The anomalous behavior of the hysteresis loop of SmCβ*in the (pyroelectric coefficient, dc bias electric voltage) coordinates has been found.