Nano-clustering mediates phase transitions in a diastereomerically-stabilized ferroelectric nematic system
Nano-clustering mediates phase transitions in a diastereomerically-stabilized ferroelectric nematic system
复制标题
纳米簇介导非对映体稳定的铁电向列系统中的相变
DOI：
10.1038/s43246-022-00312-9
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发表时间：
2022
影响因子：
7.8
通讯作者：
Araoka Fumito
中科院分区：
文献类型：
--
作者：
Nishikawa Hiroya;Sano Koki;Kurihara Saburo;Watanabe Go;Nihonyanagi Atsuko;Dhara Barun;Araoka Fumito
近年来，铁电液晶由于其独特的性质，如巨大的极化，高电光活性，高流动性，引起了人们的极大关注。然而，尽管在基于分子参数设计和开发新的铁磁流体分子方面做出了大量努力，但铁电相变的控制和稳定仍然具有挑战性。在这里，我们讨论了混合的1，3-二氧杂环己烷栓氟化（DIO）非对映体分子，namelytransDIO和cisDIO，在控制铁电相变的影响，使用X射线衍射研究近晶cybotactic簇形成的效果。我们的研究结果表明，铁电相变可以调谐的铁电向列transDIO和非liquid crystalcisDIO组件，其中类似的偶极子和分子骨架的两个组件，确保一致的宏观极化的非对映体控制的铁电相变的平稳交换。
In recent years, ferroelectric nematic liquid crystals have attracted considerable attention owing to their unique properties such as a colossal polarization, high electro-optic activity, and high fluidity. However, despite large efforts in designing and developing new ferrofluid molecules based on molecular parameters, the control and stabilization of ferroelectric nematic phase transitions remain challenging. Here, we discuss the impact of mixing 1,3-dioxane-tethered fluorinated (DIO) diastereomer molecules, namelytransDIO andcisDIO, in controlling the ferroelectric nematic phase transition, using X-ray diffraction to investigate the effect of smectic cybotactic cluster formation. Our results show that the ferroelectric nematic phase transition can be tuned by a smooth exchange of the ferroelectric nematictransDIO and non-liquid crystalcisDIO components, where the similar dipole and molecular backbone of the two components ensures a consistent macroscopic polarization of the diastereomeric-controlled ferroelectric nematic phase.