Laws of formation of polar smectic phases under a frustrated interaction

The Landau theory of phase transitions with a two-component order parameter is used to systematically calculate the structures and phase diagrams of polar liquid crystals. Commensurate and incommensurate structures with a layer-type period form as a result of a frustration interaction. Phase diagram...

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Bibliographic Details
Published in:Journal of experimental and theoretical physics 2012-12, Vol.115 (6), p.1140-1150
Main Authors: Dolganov, P. V., Zhilin, V. M., Kats, E. I.
Format: Article
Language:English
Subjects:
Classical and Quantum Gravitation
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Elementary Particles
INTERACTION RANGE
Laws, regulations and rules
LAYERS
LIQUID CRYSTALS
Nonlinear
ORDER PARAMETERS
Particle and Nuclear Physics
PHASE DIAGRAMS
PHASE STABILITY
PHASE STUDIES
PHASE TRANSFORMATIONS
Physics
Physics and Astronomy
Quantum Field Theory
Relativity Theory
Soft Matter Physics
Solid State Physics
Statistical
Toy industry
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Summary:The Landau theory of phase transitions with a two-component order parameter is used to systematically calculate the structures and phase diagrams of polar liquid crystals. Commensurate and incommensurate structures with a layer-type period form as a result of a frustration interaction. Phase diagrams are calculated when various short- and long-range interlayer interactions are sequentially introduced. As a result, the nature of formation of various structures is revealed. The calculated phase diagrams explain the formation of various phases, their temperature sequence (including so-called “unusual” sequence of phases), and the nature of forces responsible for the formation of a certain structure and the shape of a phase diagram.
ISSN:1063-7761
1090-6509
DOI:10.1134/S1063776112130134