1. Open Access Kent State
  2. Dynamic Light Scattering Study of Biaxial Ordering in a Thermotropic Liquid Crystal
Author(s)
Abstract

Dynamic light scattering from orientational order fluctuations in a liquid crystalline tetrapode reveals successive, weakly first-order isotropic to uniaxial and uniaxial to biaxial nematic phase transitions. The order parameter relaxation rates exhibit temperature dependences consistent with Landau–de Gennes mean field theory. Combined with previous evidence of a second-order uniaxial-biaxial transition in a closely related tetrapode, the present study supports the existence of a nematic-nematic tricritical point in thermotropic liquid crystals.
Format
Article
Identifier(s)
10.1103/PhysRevLett.97.207802
Publication Date
2006-11-17
Publication Title
Physical Review Letters
Volume
97
Issue
20
Keywords
Subject
Rights
http://rightsstatements.org/vocab/InC/1.0/
Community
Department of Physics
Comments

Copyright 2006 American Physical Society. Available on publisher's site at http://dx.doi.org/10.1103/PhysRevLett.97.207802.
Permalink https://oaks.kent.edu/phypubs/11
Neupane, K., Kang, S.-W., Carney, D., Meyer, T., Mehl, G., Allender, D., Kumar, S., & Sprunt, S. (2006). Dynamic Light Scattering Study of Biaxial Ordering in a Thermotropic Liquid Crystal (1–). Physical Review Letters. https://doi.org/10.1103/PhysRevLett.97.207802
Neupane, K., Shin-Woong Kang, D. Carney, T. Meyer, G. Mehl, David Allender, Satyendra Kumar, and Samuel Sprunt. 2006. “Dynamic Light Scattering Study of Biaxial Ordering in a Thermotropic Liquid Crystal”. Physical Review Letters. https://doi.org/10.1103/PhysRevLett.97.207802.
Neupane, K., et al. Dynamic Light Scattering Study of Biaxial Ordering in a Thermotropic Liquid Crystal. Physical Review Letters, 17 Nov. 2006, https://doi.org/10.1103/PhysRevLett.97.207802.