Volume 84, Number 3, November 2008
|Number of page(s)||6|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||29 October 2008|
Influence of smectic liquid crystals on the Poisson-Boltzmann distribution of ions near charged surfaces
Raman Research Institute - C. V. Raman Avenue, Sadashivanagar, Bangalore 560 080, India
Corresponding author: firstname.lastname@example.org
Accepted: 30 September 2008
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.
PACS: 61.30.-v – Liquid crystals / 61.20.Qg – Structure of associated liquids: electrolytes, molten salts, etc. / 82.45.-h – Electrochemistry and electrophoresis
© EPLA, 2008
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.