论文标题
在ACHIRAL杆状铁电列液晶体的平面对准细胞中检测手性结构域和线性电流响应
Detection of chiral domains and linear electro-optical response in planar-aligned cells of an achiral rod-like ferro-electric nematic liquid crystal
论文作者
论文摘要
令人惊讶的是，在刺激性杆状液晶中源的列相位，表现出了相反手性的手性结构域，该近相显示了铁电列和抗抗雌激素阶段。通过在平面对准的细胞中应用弱电场，可以实现相反手性的手性域的观察。但是，一旦创建了相反的手性领域，即使删除了该领域，这些领域也会永久保留。观察到的现象是由于棒状分子的含量中胶的对称性破坏。在NX相中同样观察到这些结构域。但是，对于温度关闭或在NF中，域的大小显着降低了可见光的波长。在NF相中，有一个平行于表面的偶极矩的单个结构域，或者是在本实验中无法确定的。
Chiral domains of opposite chirality are observed surprisingly in a nematic phase of an achiral rod-like liquid crystalline mesogen that shows ferroelectric nematic and antiferroelectric smectic phases. The observations of chiral domains of opposite chirality are enabled by application of a weak electric field across a planar-aligned cell. However once domains of opposite chirality are created, these stay permanently even if the field is removed. The observed phenomenon is due to the symmetry breaking of achiral mesogens of rod-shaped molecules. These domains are similarly observed in the Nx phase. However for temperatures close or in the NF, the size of domains is reduced significantly below the wavelength of visible light. There is either a single domain with dipole moments parallel to the surface or domains antiparallel in the NF phase, not possible to determine in this experiment.
