Field-induced switching between states of opposite chirality in a liquid-crystalline phase.
Field-induced switching between states of opposite chirality in a liquid-crystalline phase.
复制标题
液晶相中相反手性状态之间的场感应切换。
DOI：
10.1103/physreve.67.020702
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
Wolfgang Weissflog
中科院分区：
文献类型：
--
作者：
Alexey Eremin;S. Diele;G. Pelzl;Wolfgang Weissflog
报道了一种新的无手性香蕉形介晶的倾斜近晶相。它在层内具有类似液体的秩序，并以扇形结构出现。在足够高的电场下，这种织构可以转变为在交叉偏振器之间完全消光的织构，并形成随机分布的手性结构域。在阈值以上，这些区域可以可逆地切换到相反的惯用手状态。
A tilted smectic phase of a new achiral banana-shaped mesogen is presented. It possesses liquidlike order within the layers and appears with a fan-shaped texture. At sufficiently high electric fields, this texture can be transformed into a texture that displays a complete extinction between crossed polarizers and it forms randomly distributed chiral domains. Above a threshold these domains can be reversibly switched into a state of opposite handedness.