title: Local layer structures in circular domains of an achiral bent-core mesogen observed by x-ray microbeam diffraction.
abstract: The local layer structures have been investigated by x-ray microbeam diffraction in the circular domains of the SmCP phase of a banana-shaped molecule. Originally, the molecules form tilted layers with a certain tilt angle as well as nontilted ones. The application of a low electric field induces a tilted layer with a continuous change of the tilt angle; i.e., the tilted layer gradually changes the tilt angle, finally being upright at the center of circular domains. Upon application of a high electric field, the smectic layer forms a cylindrical-type structure. The layer structure changes from cylindrical to onionlike after turning off the high field.
authors.affiliation: Department of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan.
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Takanishi
authors.forename: Toyokazu
authors.initials: T
authors.lastname: Ogasawara
authors.forename: Ken
authors.initials: K
authors.lastname: Ishikawa
authors.forename: Hideo
authors.initials: H
authors.lastname: Takezoe
authors.forename: Junji
authors.initials: J
authors.lastname: Watanabe
authors.forename: Yumiko
authors.initials: Y
authors.lastname: Takahashi
authors.forename: Atsuo
authors.initials: A
authors.lastname: Iida