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Title: Rotational viscosity in the ferroelectric C* phase - A high pressure study
Authors: Khened, S.M.
Krishna Prasad, S.
Raja, V.N.
Chandrasekhar, S.
Shivkumar, B.
Issue Date: Nov-1992
Publisher: World Scientific
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.
Description: Restricted Access.
ISBN: 978-8120407138
Copyright: 1992 World Scientific
Appears in Collections:Research Papers (SCM)

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