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Metselaar L, Dozov I, Antonova K, et al. Electric-field-induced shape transition of nematic tactoids. Phys Rev E. 2017;96(2):022706doi: 10.1103/PhysRevE.96.022706.
Metselaar, L., Dozov, I., Antonova, K., Belamie, E., Davidson, P., Yeomans, J. M., & Doostmohammadi, A. (2017). Electric-field-induced shape transition of nematic tactoids. Physical review. E, 96(2), 022706. https://doi.org/10.1103/PhysRevE.96.022706
Metselaar, Luuk, et al. "Electric-field-induced shape transition of nematic tactoids." Physical review. E vol. 96,2 (2017): 022706. doi: https://doi.org/10.1103/PhysRevE.96.022706
Metselaar L, Dozov I, Antonova K, Belamie E, Davidson P, Yeomans JM, Doostmohammadi A. Electric-field-induced shape transition of nematic tactoids. Phys Rev E. 2017 Aug;96(2):022706. doi: 10.1103/PhysRevE.96.022706. Epub 2017 Aug 09. PMID: 28950460.
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Phys Rev E. 2017 Aug;96(2):022706. doi: 10.1103/PhysRevE.96.022706. Epub 2017 Aug 09.

Electric-field-induced shape transition of nematic tactoids.

Physical review. E

Luuk Metselaar, Ivan Dozov, Krassimira Antonova, Emmanuel Belamie, Patrick Davidson, Julia M Yeomans, Amin Doostmohammadi

Affiliations

  1. The Rudolf Peierls Centre for Theoretical Physics, 1 Keble Road, Oxford OX1 3NP, United Kingdom.
  2. Laboratoire de Physique des Solides, Université Paris-Sud, Université Paris-Saclay, CNRS, UMR 8502, Orsay, France.
  3. Institute of Solid State Physics, Bulgarian Academy of Sciences, Sofia, Bulgaria.
  4. Institut Charles Gerhardt Montpellier, ENSCM, Montpellier, France.

PMID: 28950460 DOI: 10.1103/PhysRevE.96.022706

Abstract

The occurrence of new textures of liquid crystals is an important factor in tuning their optical and photonics properties. Here, we show, both experimentally and by numerical computation, that under an electric field chitin tactoids (i.e., nematic droplets) can stretch to aspect ratios of more than 15, leading to a transition from a spindlelike to a cigarlike shape. We argue that the large extensions occur because the elastic contribution to the free energy is dominated by the anchoring. We demonstrate that the elongation involves hydrodynamic flow and is reversible: the tactoids return to their original shapes upon removing the field.

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