期刊
PHYSICAL REVIEW LETTERS
卷 124, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.124.037801
关键词
-
资金
- Slovenian Research Agency [P1-0192]
- Slovenian Ministry of Education, Science and Sport (MIZS)
- ERDF (project OPTIGRAD)
- EPSRC (UK)
- QinetiQ
- University of the Basque Country UPV/EHU [GIU18/146]
Ferroelectric ordering in liquids is a fundamental question of physics. Here, we show that ferroelectric ordering of the molecules causes the formation of recently reported splay nematic liquid-crystalline phase. As shown by dielectric spectroscopy, the transition between the uniaxial and the splay nematic phase has the characteristics of a ferroelectric phase transition, which drives an orientational ferroelastic transition via flexoelectric coupling. The polarity of the splay phase was proven by second harmonic generation imaging, which additionally allowed for determination of the splay modulation period to be of the order of 5-10 microns, also confirmed by polarized optical microscopy. The observations can be quantitatively described by a Landau-dc Gennes type of macroscopic theory.
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