Pyroelectric and electromechanical properties of the antiferroelectric liquid crystal MHPOBC |
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| Authors: | S V Yablonskii K Nakano M Ozaki K Yoshino |
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| Institution: | (1) Department of Electronic Engineering, Graduate School of Engineering, Osaka University 2-1 Yamada-Oka, Suita, Osaka 565-0871, Japan;(2) Institute of Crystallography, Russian Academy of Sciences, Moscow, 117333, Russia |
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| Abstract: | 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 SmC A * as well as paraelectric SmA. The anomalous behavior of the hysteresis loop of SmC β * in the (pyroelectric coefficient, dc bias electric voltage) coordinates has been found. |
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