材料科学
液晶
反演(地质)
戒指(化学)
光学
物理
光电子学
古生物学
化学
有机化学
构造盆地
生物
作者
Federica Ciuchi,Maria P. De Santo,Silvia Paparini,Lorenza Spina,Epifanio G. Virga
标识
DOI:10.1080/02678292.2024.2313023
摘要
Twisted hedgehogs are defects in spherical cavities with homeotropic anchoring for the nematic director that arise when twist distortions are sufficiently less energetic than splay (and bend) distortions. They bear a characteristic inversion ring, where the director texture changes the sense it spirals about the centre of the cavity. This paper applies a quartic twist theory recently proposed to describe the elasticity of chromonics to explain a series of inversion rings observed in spherical microcavities containing aqueous solutions of SSY at two different concentrations. The theory features a phenomenological length a, whose measure is extracted from the data and shown to be fairly independent of the cavity radius, as expected for a material constant.
科研通智能强力驱动
Strongly Powered by AbleSci AI