Landau Theory of Biaxial and Uniaxial Nematic Liquid Crystals
- 1 March 1985
- journal article
- research article
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 124 (1) , 45-52
- https://doi.org/10.1080/00268948508079464
Abstract
A Landau theory is developed for uniaxial and biaxial nematic phases, based on the order parameter S αβ ij . Four nematic phases, two uniaxial and two biaxial, are predicted and their symmetries are discussed. A typical phase diagram is presented and comparisons are made with earlier mean field theories and Landau theories based on a second rank tensor order parameter.Keywords
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