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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3719

Title: Influence of smectic liquid crystals on the Poisson-Boltzmann distribution of ions near charged surfaces
Authors: Roy, Arun
Madhusudana, N.V.
Issue Date: Oct-2008
Publisher: EDP Sciences / Institute of Physics Publishing (IOP)
Citation: Europhysics Letters, 2008, Vol.84, 36006
Abstract: We have developed a model for the distribution of ions in a sample of smectic-A liquid crystal taken between two charged plates, by including an appropriate one-dimensionally periodic potential. In samples which are in contact with an external reservoir, there is an influx of ions to the cell attracted by the minima in the periodic potential, effectively reducing the screening length compared to the Debye length in the nematic phase. The smectic potential has maxima near the plates, which leads to an inward longitudinal pressure unlike in nematic. In the case of sealed cells without any contact with an external reservoir, the ion distribution in the smectic follows closely that in the nematic, except for the oscillations arising from the smectic potential.
Description: Restricted Access.
URI: http://hdl.handle.net/2289/3719
ISSN: E-ISSN: 1286-4854
P-ISSN: 0295-5075
Alternative Location: http://dx.doi.org/10.1209/0295-5075/84/36006
Copyright: 2008 IOP Publishing
Appears in Collections:Research Papers (SCM)

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