Abstract
Abstract Measurements have been made of the splay and bend elastic constants (k11 and k33) of a series of hybrid mixtures exhibiting an injected smectic phase. We have observed large pretransitional increases in k11, k33 and k33/k11 close to the smectic phase. Outside this pretransitional region k11 increases and k33 decreases on approaching the injected smectic phase by changing composition or temperature. The results have been attributed to an enhancement in the smectic-ike local ordering in accord with a recent theory.
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