title: Critical fluctuations near the smectic-hexatic phase transition with anticlinic structure.
abstract: Layer compression modulus B measurements have been conducted near the transitions between smectic and hexatic phases with synclinic and anticlinic structures. In the synclinic structure, B shows no pretransitional softening near the phase transition. However, in the anticlinic structure, we observed evident critical softening of B near the smectic-hexatic phase transition. These results clearly reveal that the introduction of the in-plane hexatic order in the anticlinic structure is different from the usual smectic-hexatic phase transition.
authors.affiliation: Department of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152, Japan.
authors.forename: Seiji
authors.initials: S
authors.lastname: Shibahara
authors.forename: Jun
authors.initials: J
authors.lastname: Yamamoto
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Takanishi
authors.forename: Ken
authors.initials: K
authors.lastname: Ishikawa
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Yokoyama
authors.forename: Hideo
authors.initials: H
authors.lastname: Takezoe