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Zhou S, Nastishin YA, Omelchenko MM, et al. Elasticity of lyotropic chromonic liquid crystals probed by director reorientation in a magnetic field. Phys Rev Lett. 2012;109(3):037801doi: 10.1103/PhysRevLett.109.037801.
Zhou, S., Nastishin, Y. A., Omelchenko, M. M., Tortora, L., Nazarenko, V. G., Boiko, O. P., Ostapenko, T., Hu, T., Almasan, C. C., Sprunt, S. N., Gleeson, J. T., & Lavrentovich, O. D. (2012). Elasticity of lyotropic chromonic liquid crystals probed by director reorientation in a magnetic field. Physical review letters, 109(3), 037801. https://doi.org/10.1103/PhysRevLett.109.037801
Zhou, Shuang, et al. "Elasticity of lyotropic chromonic liquid crystals probed by director reorientation in a magnetic field." Physical review letters vol. 109,3 (2012): 037801. doi: https://doi.org/10.1103/PhysRevLett.109.037801
Zhou S, Nastishin YA, Omelchenko MM, Tortora L, Nazarenko VG, Boiko OP, Ostapenko T, Hu T, Almasan CC, Sprunt SN, Gleeson JT, Lavrentovich OD. Elasticity of lyotropic chromonic liquid crystals probed by director reorientation in a magnetic field. Phys Rev Lett. 2012 Jul 20;109(3):037801. doi: 10.1103/PhysRevLett.109.037801. Epub 2012 Jul 18. PMID: 22861899.
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Phys Rev Lett. 2012 Jul 20;109(3):037801. doi: 10.1103/PhysRevLett.109.037801. Epub 2012 Jul 18.

Elasticity of lyotropic chromonic liquid crystals probed by director reorientation in a magnetic field.

Physical review letters

Shuang Zhou, Yu A Nastishin, M M Omelchenko, L Tortora, V G Nazarenko, O P Boiko, T Ostapenko, T Hu, C C Almasan, S N Sprunt, J T Gleeson, O D Lavrentovich

Affiliations

  1. Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, Kent, Ohio 44242, USA.

PMID: 22861899 DOI: 10.1103/PhysRevLett.109.037801

Abstract

Using a magnetic Frederiks transition technique, we measure the temperature and concentration dependences of splay K1, twist K2, and bend K3 elastic constants for the lyotropic chromonic liquid crystal sunset yellow formed through noncovalent reversible aggregation of organic molecules in water. K1 and K3 are comparable to each other and are an order of magnitude higher than K2. At higher concentrations and lower temperatures, K1 and the ratios K1/K3 and K1/K2 increase, which is attributed to elongation of self-assembled lyotropic chromonic liquid crystal aggregates, a feature not found in conventional thermotropic and lyotropic liquid crystals formed by covalently bound units of a fixed length.

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