对流状态的向列相液晶的结构缺陷及其运动

对流状态的向列相液晶的结构缺陷及其运动 DEFECTS OF CONVECTIVE ROLLS AND THEIR INTERACTION WITH THE STRUCTURES IN A NEMATIC LIQUID CRYSTAL 杨宣东 Yang Xuandong 1 2 first-author R.RIBOTTA 1 2 A·JOETS 1 2 武汉大学物理系 武汉大学物理系 Departement of physics Wuhan Uuiuersity) R. Ribotta, A. Joets Departement of physics Wuhan Uuiuersity) R. Ribotta, A. Joets Laboratoire de Physique des Solides Universite de Paris,Sud Laboratoire de Physique des Solides Universite de Paris,Sud 本文介绍了处于对流状态的向列相液晶里的缺陷的基本形态以及缺陷的作用。展示了湍流状态出现以前的一组连续有序结构里,缺陷形态的转变以及缺陷的动力学运动。并明确了由缺陷导致的向列相液晶的不均匀相变。 We present the first study of the topology and the role of defects in the convection of a nematic liquid crystal We show the evolution of this topology in the successive ordered structures before the onset of a chaotic state. The dynamics of the defects is also presented and we show the first evidence of a heterogeneous transformation leading to the chaos. 向列相液晶 对流结构 缺陷 刃位错 Nematie liquid crystal Convective structure Defects Edgedislocation 1987-03-01 2021-04-01 3