Abstract
The interplay between two possibly incommensurate lengths can lead to complex spatial patterns. A series of experimets by Lowe and Gollub (1,2) on nematic liquid crystal convection cells with spatially periodic forcing fields provide visual images of a number of such patterns. This paper will use the Lowe-Gollub experiments to discuss general aspects of spatial structure in systems with competing incommensurate lengths. Particular applications to polar liquid crystals (3,4) and icosahedral quasi-crystals (5,6) will be considered. Spatial structure in these systems is microscopic (on a scale of tens of Angstroms) rather than macroscopic (on a scale of hundreds of microns) as in the Lowe-Gollub experiments. Nevertheless, the general mechanisms for pattern formation to be discussed in this paper apply to both cases.
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References
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© 1987 Martinus Nijhoff Publishers, Dordrecht
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Lubensky, T.C., Ingersent, K. (1987). Patterns in Systems with Competing Incommensurate Lengths. In: Walgraef, D. (eds) Patterns, Defects and Microstructures in Nonequilibrium Systems. NATO ASI Series, vol 121. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3559-4_4
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DOI: https://doi.org/10.1007/978-94-009-3559-4_4
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