Related Experiment Video
Updated: Jun 14, 2026

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
Published on: October 31, 2019
Entropy and heat capacity calculations of simulated crystal-hexatic smectic-B-smectic-A liquid-crystal phase
Keiko M Aoki1, Makoto Yoneya, Hiroshi Yokoyama
1Yokoyama Nanosystem Liquid Crystal Project, JST, Tsukuba, Japan. aoki@icfd.co.jp
Abstract:
Entropy and heat capacity are calculated in phase sequence of crystal, hexatic smectic- B , and smectic- A liquid crystals through constant pressure and temperature molecular-dynamics simulations of parallel soft spherocylinders. The transition from crystal to hexatic smectic- B phase is continuous while the transition to smectic- A phase is first order. The dependence of the phase sequence against the molecular shape anisotropy is investigated and there exists a triple point at a rather small anisotropy. Hopping diffusion of molecules is observed in the hexatic smectic- B phase.
Related Concept Videos
Phase Transitions: Melting and Freezing
Entropy Changes Accompanying Specific Processes
Phase Transitions: Sublimation and Deposition
Phase Transitions
Phase Transitions
States of Matter and Phase Changes

