论文标题
静脉近似中近晶晶体中的螺丝错相互作用
Screw dislocation interaction in smectic-A liquid crystals in an anharmonic approximation
论文作者
论文摘要
使用对弹性能量密度的非谐波校正处理两个螺钉脱位在晶状体A液晶中的相互作用。在目前的贡献中，评估并讨论了两个螺钉位错之间的弹性能和力。对于平行和相反的汉堡向量的螺钉位错，对于它们的较小的分离有很多吸引力，而为了更大的分离，有一个排斥。可以通过不取决于位错迹象的相互作用能量中的术语来解释。通过这种方式，在固体固体中的螺钉位错的情况下，近晶近似近似近似值的液晶中的螺钉位错的相互作用能有所不同。
The interaction of two screw dislocations in smectic-A liquid crystals is treated using an anharmonic correction to the elastic energy density. In the present contribution the elastic energy and the force between two screw dislocations is evaluated and discussed. For screw dislocations with both parallel and opposite Burgers vectors there is an attraction of dislocations for their small separations while for greater separations there is a repulsion. It can be explained by dominating terms in interaction energy which do not depend on signs of dislocations. In this way, the interaction energy of screw dislocations in smectic A liquid crystal within an anharmonic approximation differs with respect to the case of screw dislocations in solids.
