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arXiv · 1502.03770

Hierarchy of Periodic patterns in the twist-bend nematic phase of mesogenic dimers

Vitaly P. Panov·Michael C. M. Varney·Ivan I. Smalyukh·Jagdish K. Vij·Maria G. Tamba·Georg H. Mehl
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Abstract

Several attractive properties of hydrocarbon-linked mesogenic dimers have been discovered, a major feature of these has been the ability of dimers under confinement to form periodic patterns. At least six different types of stripe-like periodic patterns can be observed in these materials under various experimental conditions. Our most recent finding is the discovery of micrometre-scale periodic patterns at the N-Ntb phase transition interface, and sub-micrometre scale patterns in the Ntb phase. Layer-like sub-micrometre patterns were observed using three-photon excitation fluorescence polarizing microscopy, and these are being reported here.

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Vitaly P. Panov, Michael C. M. Varney, Ivan I. Smalyukh, Jagdish K. Vij, Maria G. Tamba, Georg H. Mehl. 2015-02-13. Hierarchy of Periodic patterns in the twist-bend nematic phase of mesogenic dimers. https://doi.org/10.1080/15421406.2015.1030252

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