Nematic twist-bend phase with nanoscale modulation of molecular orientation
SCIE
SCOPUS
- Title
- Nematic twist-bend phase with nanoscale modulation of molecular orientation
- Authors
- Borshch, V.; KIM, YOUNGKI; Xiang, J.; Gao, M.; Jakli, A.; Panov, V. P.; Vij, J. K.; Imrie, C. T.; Tamba, M. G.; Mehl, G. H.; Lavrentovich. O. D.
- Date Issued
- 2013-11
- Publisher
- Nature Publishing Group
- Abstract
- A state of matter in which molecules show a long-range orientational order and no positional order is called a nematic liquid crystal. The best known and most widely used (for example, in modern displays) is the uniaxial nematic, with the rod-like molecules aligned along a single axis, called the director. When the molecules are chiral, the director twists in space, drawing a right-angle helicoid and remaining perpendicular to the helix axis; the structure is called a chiral nematic. Here using transmission electron and optical microscopy, we experimentally demonstrate a new nematic order, formed by achiral molecules, in which the director follows an oblique helicoid, maintaining a constant oblique angle with the helix axis and experiencing twist and bend. The oblique helicoids have a nanoscale pitch. The new twist-bend nematic represents a structural link between the uniaxial nematic (no tilt) and a chiral nematic (helicoids with right-angle tilt).
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/99504
- DOI
- 10.1038/ncomms3635
- ISSN
- 2041-1723
- Article Type
- Article
- Citation
- Nature Communications, vol. 4, page. 2635, 2013-11
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- There are no files associated with this item.
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