Singular Elastic Properties of Mixtures with the Re-entrant Nematic Phase
G. Czechowski and J. Jadżyn
Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland
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Received: 3 06 2004;
The paper presents temperature behavior of the splay and bend elastic constants measured for n-hexyloxycyanobiphenyl and n-octyloxycyanobiphenyl mixtures - a system exhibiting the re-entrant nematic phase. It was shown that singularities in the elastic properties of the system concern not only the nematic phase (the well-known pre-smectic effects) but first of all - the smectic A phase, in which the splay and bend deformations, normally not allowed for the layered structures, can be induced.
DOI: 10.12693/APhysPolA.106.475
PACS numbers: 64.70.Md, 62.20.Dc, 61.30.-v