A smectic C*-smectic A tricritical point in a mixture of two compounds exhibiting high spontaneous polarization |
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| Authors: | G. Heppke D. Lötzsch R. Shashidhar |
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| Affiliation: | 1. Iwan-N.-Stranski-Institut, Technische Universit?t Berlin, Sekr. ER 11 , Strasse des 17 Juni 135, D-1000 , Berlin 12 , F. R. Germany;2. Bio/Molecular Engineering Branch, Code 6190, Naval Research Laboratory , Washington , D.C. , 20375-5000 , U.S.A.;3. Also at the Department of Chemistry , Georgetown University , Washington , D.C. , 20057 , U.S.A.;4. Raman Research Institute , Bangalore , 560 080 , India |
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| Abstract: | X-ray diffraction, D.S.C. and miscibility studies have been performed on inary mixtures whose constituent compounds exhibit large values of spontaneous polarization. These studies have led to the observation of a tricritical point for the smectic C*-smectic A transition. The origin of this tricritical behaviour is discussed in relation to the range of the smectic A phase and the large spontaneous polarization. |
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