Uniaxial versus biaxial pathways in one-dimensional cholesteric liquid crystals

Yucen Han, James Dalby, Apala Majumdar, Benjamin M. G. D. Carter, Thomas Machon

Research output: Contribution to journalArticlepeer-review

Abstract

Cholesteric liquid crystals exhibit great morphological richness of static metastable states. Understanding the transitions between such states is key for the development of switchable devices. We show, using a quasi-one-dimensional model, that cholesterics exhibit distinct uniaxial and biaxial pathways between distinct minima. We study transitions between different layer numbers and prove, and show, that transition states are distinguished either through splay-mediated untwisting, understood through contact topology, or the presence of biaxiality. Furthermore we characterize a menagerie of additional saddle points that dictate the connectivity of the solution landscape.

Original languageEnglish
Article numberL032018
Number of pages6
JournalPhysical Review Research
Volume4
Issue number3
DOIs
Publication statusPublished - 2 Aug 2022

Keywords

  • cholesteric liquid crystals
  • static metastable states
  • transitions

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