High-resolution calorimetric study of phase transitions in chiral smectic-C liquid crystalline phases

Y. Sasaki, K. V. Le, S. Aya, M. Isobe, H. Yao, Cheng-Cher Huang, H. Takezoe, K. Ema

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

We carried out an improved characterization of phase transitions among chiral smectic-C subphases observed for various antiferroelectric liquid crystals by precise heat capacity measurements. It was found that the phase transitions are intrinsically first order exhibiting a remarkable heat anomaly which involves little pretransitional thermal fluctuation and a finite thermal hysteresis. On the other hand, we also noticed that the critical point of the smectic-Cα*-smectic-C* transition is induced by the destabilization of the smectic-Cα* phase which couples with the fluctuation associated with the smectic-A-smectic-Cα* phase transition.

Original languageEnglish (US)
Article number061704
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume86
Issue number6
DOIs
StatePublished - Dec 28 2012

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