Dynamic Fluctuations near a Reentrant Nematic-Smectic A Phase Transition

Kenji Miyakawa; Hisataka Kudo; Akira Takase; Sakumitsu Sagami

doi:10.1143/JPSJ.55.235

Journal of the Physical Society of Japan

Online ISSN : 1347-4073
Print ISSN : 0031-9015
ISSN-L : 0031-9015

Dynamic Fluctuations near a Reentrant Nematic-Smectic A Phase Transition

Kenji Miyakawa, Hisataka Kudo, Akira Takase, Sakumitsu Sagami

著者情報

ジャーナル認証あり

1986 年 55 巻 1 号 p. 235-239

DOI https://doi.org/10.1143/JPSJ.55.235

詳細

抄録

Thermally excited orientational fluctuations are measured in the liquid crystal near the reentrant nematic-smectic A phase transition, using Rayleigh light scattering technique. Twist and bending modes show a critical enhancement, while the splay mode remains unchanged, as the transition temperature is approached. Its critical behavior is found to be compatible with a mean field theory but not with a dynamic scaling theory.