Calorific study of the smectic A—smectic C transition in TBBA |
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| Authors: | P Das K Ema C W Garland |
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| Institution: |
a Department of Chemistry and Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, U. S. A.
b Department of Physics, Tokyo Institute of Technology, Tokyo, Japan |
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| Abstract: | An a.c. calorimetric technique has been used to measure the heat capacity variation associated with the smectic A—smectic C transition in terephthal-bis-(4n)-butylaniline (TBBA). Contrary to expectations based on the recent observation of petransitional acoustic effects in the semectic-A phase, the heat capacity shows no evidence of critical fluctuations and can be well described by a Landau mean-field model. |
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