Molecular dynamics in the vicinity of the transition into the hexatic phase in chiral smectics

Authors
Pociecha, D Glogarova, M Gorecka, E Rychetsky, I Mieczkowski, J Dvorak, V
Citation
D. Pociecha et al., Molecular dynamics in the vicinity of the transition into the hexatic phase in chiral smectics, MOL CRYST A, 328, 1999, pp. 275-282
Citations number
8
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS
ISSN journal
1058725X → ACNP
Volume
328
Year of publication
1999
Pages
275 - 282
Database
ISI
SICI code
1058-725X(1999)328:<275:MDITVO>2.0.ZU;2-A
Abstract
A single relaxation process has been observed in both SmC* and hexatic SmI* phases by dielectric and electroptic methods, which was attributed to fluc tuations of the bond orientation order (BOO). This mode exhibits a softenin g when approaching the SmI* phase on cooling. The coupling between the BOO and polarization results in an anomalous increase of P-S value at the trans ition to the hexatic phase.