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|Title:||Rotational viscosity in the ferroelectric C* phase - A high pressure study|
Krishna Prasad, S.
|Citation:||Recent Trends in High Pressure Research: Proceedings of the Xiii Airapt International Conference on High Pressure Science and Technology 7-11 October 1991, World Scientific, 1992, p526-528|
|Abstract:||Since the demonstration of microsecond switching using ferroelectric liquid crystals, these materials are considered as key substances for fast electro-optic response, memory effect and other kinds of LCD applications. A basic parameter which decides the speed of electro-optic response is the rotational viscosity γΦ. This property, which is associated with the motion of the molecule around a cone of azimuthal angles is also important in understanding the dynamics of switching. We have performed high pressure studies on a compound exhibiting the ferroelectric-paraelectric (Smectic C*-Smectic A) transition. The results show that the thermal variation of γΦ is of the arrhenius type and its value increases with increasing pressure.|
|Copyright:||1992 World Scientific|
|Appears in Collections:||Research Papers (SCM)|
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|1992 PROC XIII AIRAPT p526.pdf|
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