Electro-optical and thermal studies of one ferroelectric liquid-crystal compound with a polarization sign reversal
نویسندگان
چکیده
2014 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. J. Phys. France 51 (1990) 1749-1757 15 AOÛT 1990,
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