1. Open Access Kent State
  2. The electrostatic polarization of ferroelectric liquid crystals: A new interpretation of the triangle-wave technique
Author(s)
Abstract

We show that the electrostatic polarization measured in ferroelectric liquid crystals using the standard triangle‐wave technique is not the total polarization of the sample, but rather a specific nonlinear component of the total polarization. We present a Landau theory to calculate this nonlinear component explicitly. In the high‐temperature limit, above the smectic‐A–smectic‐C* phase transition, the theory predicts that the observed polarization scales as E3/(T−TAC)4, where T is the temperature and E the applied electric field. In the low‐temperature limit, the observed polarization approaches the total polarization. These theoretical predictions are consistent with experimental measurements.
Format
Article
Identifier(s)
10.1063/1.112923
Publication Date
1994-09-19
Publication Title
Applied Physics Letters
Publisher
AIP Publishing
Volume
65
Issue
12
First Page
1590
Last Page
1592
Subject
Rights
http://rightsstatements.org/vocab/InC/1.0/
Community
Advanced Materials and Liquid Crystal Institute
Department of Physics
Permalink https://oaks.kent.edu/article/electrostatic-polarization-ferroelectric-liquid-crystals-new-interpretation-triangle-wave
Ruth, J., Selinger, J., & Shashidhar, R. (1994). The electrostatic polarization of ferroelectric liquid crystals: A new interpretation of the triangle-wave technique (1–). Applied Physics Letters. https://doi.org/10.1063/1.112923
Ruth, J., Jonathan Selinger, and R. Shashidhar. 1994. “The Electrostatic Polarization of Ferroelectric Liquid Crystals: A New Interpretation of the Triangle-Wave Technique”. Applied Physics Letters. https://doi.org/10.1063/1.112923.
Ruth, J., et al. The Electrostatic Polarization of Ferroelectric Liquid Crystals: A New Interpretation of the Triangle-Wave Technique. Applied Physics Letters, 19 Sept. 1994, https://doi.org/10.1063/1.112923.