期刊
APPLIED PHYSICS LETTERS
卷 97, 期 15, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3502595
关键词
-
资金
- German Research Foundation (DFG) [SP 1164, Hu 850/2]
Optical birefringence measurements on a rodlike liquid crystal, octyloxycyanobiphenyl, imbibed in silica channels (7 nm diameter), are presented and compared to the thermotropic bulk behavior. The orientational and positional order of the confined liquid evolves continuously at the paranematic-to-nematic and sizeably broadened at the nematic-to-smectic order transition, respectively, in contrast to the discontinuous and well-defined second-order character of the bulk transitions. A Landau-de Gennes analysis reveals identical strengths of the nematic and smectic ordering fields (imposed by the walls) and indicates that the smectic order is more affected by quenched disorder (originating in channel tortuosity and roughness) than the nematic transition.(C) 2010 American Institute of Physics. [doi: 10.1063/1.3502595]
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据