论文标题
列晶液晶体中二氧化硅微型和纳米棒的非平凡电泳
Nontrivial electrophoresis of silica micro and nanorods in a nematic liquid crystal
论文作者
论文摘要
我们研究了列晶液晶体的薄膜中二氧化硅微型和纳米棒的直流和AC电泳。这些颗粒会诱导虚拟拓扑缺陷，并在列液晶中表现出非平凡的电泳。我们测量了几个非线性电泳迁移率系数，并与理论上计算的那些相比。我们证明了弹性和静电扭矩的竞争作用，这是由于杆相对于液晶主管的倾斜而产生的。描述这种效果的基本理论使我们能够测量杆的有效极化性。我们的方法很简单，适用于多种不对称且可极化的颗粒。
We study DC and AC electrophoresis of silica micro and nanorods in a thin film of a nematic liquid crystal. These particles induce virtual topological defects and also demonstrate nontrivial electrophoresis in a nematic liquid crystal. We measure several nonlinear electrophoretic mobility coefficients and compare with those calculated theoretically. We demonstrate a competing effect of the elastic and electrostatic torques that arises due to tilting of the rods with respect to the liquid crystal director. A basic theory describing this effect allows us to measure the effective polarizability of the rods. Our approach is simple and applicable to a wide variety of asymmetric and polarizable particles.
