Molecular rotational potentials in the SC* phase of binary ferroelectric liquid crystal mixtures |
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Authors: | A Buka H Stegemeyer |
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Institution: |
a Institute of Physical Chemistry, University of Paderborn, Paderborn, F.R.G
b Central Research Institute for Physics, Budapest, Hungary |
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Abstract: | The spontaneous polarization and tilt angle have been measured as a function of temperature and concentration in the SC* phase of four binary ferroelectric liquid crystal mixtures. The substances have been chosen in a way that different situations could be studied, for example mixtures of a chiral substance (Ps non-zero) with a non-chiral one (Ps = 0) and mixtures of chiral compounds with the same sign of Ps as well as with opposite signs. The results have been interpreted by means of a molecular rotational model and potentials associated with the tilt as well as with the chirality have been determined as a function of concentration. |
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