一种具有极化符号反转的铁电液晶化合物的电光和热研究

Journal De Physique Pub Date : 1990-08-01 DOI:10.1051/JPHYS:0199000510160174900

Cheng-Cher Huang, T. Min, Deng-Sung Lin, B. Zhou, J. Goodby

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引用次数: 2

摘要

在一种液晶化合物的smic - a (SmA)-手性- smic -C (SmC*)转变附近，测量了热容量、光学倾斜角、极化和螺旋节距的温度变化，该化合物在约25℃时表现出不寻常的极化反转行为，而SmA-SmC*转变发生在50℃。出乎意料的是，从我们详细的量热和光学显微镜研究中，我们发现在相当缓慢的冷却实验运行中，再结晶也发生在25°C左右

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Electro-optical and thermal studies of one ferroelectric liquid-crystal compound with a polarization sign reversal

Temperature variations of heat capacity, optical tilt angle, polarization, and helical pitch have been measured in the vicinity of the smectic-A (SmA)-chiral-smectic-C (SmC*) transition of one liquid-crystal compound which exhibits an unusual reversal behavior in polarization at about 25°C while the SmA-SmC* transition occurs at 50°C. Unexpectedly, from our detailed calorimetric and optical microscopy studies, we have found that the recrystallization also occurs around 25°C during a reasonably slow cooling experimental run

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Journal De Physique

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