Topological Ferroelectric Bistability in a Polarization-Modulated Orthogonal Smectic Liquid Crystal
Artikel i vetenskaplig tidskrift, 2012

We report a bent-core liquid crystal (LC) compound exhibiting two fluid smectic phases in which two-dimensional, polar, orthorhombic layers order into three-dimensional ferroelectric states. The lower-temperature phase has a uniform polarization field which responds in an analog fashion to applied electric field. The higher-temperature phase is a new smectic state with periodic undulation of the polarization, structurally modulated layers, and a bistable response to applied electric field which originates in the periodically splay-modulated bulk of the LC rather than by surface stabilization at the cell boundaries.

achiral molecules

transition

phase

order

Författare

C. H. Zhu

University of Colorado at Boulder

R. F. Shao

University of Colorado at Boulder

R. A. Reddy

University of Colorado at Boulder

D. Chen

University of Colorado at Boulder

Y. Q. Shen

University of Colorado at Boulder

T. Gong

University of Colorado at Boulder

M. A. Glaser

University of Colorado at Boulder

E. Korblova

University of Colorado at Boulder

Per Rudquist

Chalmers, Teknisk fysik, Elektronikmaterial och system

J. E. Maclennan

University of Colorado at Boulder

D. M. Walba

University of Colorado at Boulder

N. A. Clark

University of Colorado at Boulder

Journal of the American Chemical Society

0002-7863 (ISSN) 1520-5126 (eISSN)

Vol. 134 23 9681-9687

Ämneskategorier

Kemi

DOI

10.1021/ja3009314

Mer information

Senast uppdaterat

2018-03-06