Send to

Choose Destination
Phys Rev Lett. 2008 Dec 5;101(23):237801. Epub 2008 Dec 4.

Confinement effect on interparticle potential in nematic colloids.

Author information

J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia.


We studied the confinement effect on the interaction force in nematic liquid crystal colloids with spherical particles inducing planar anchoring. Using magneto-optical tweezers, we measured the spatial dependence of the quadrupolar structural interparticle force over 4 orders of magnitude. For small separations, the interparticle potential follows the power law, whereas for separations larger than the sample thickness, it decreases exponentially with the decay length proportional to the sample thickness. Experimental results are reproduced by using the Landau-de Gennes free-energy minimization approach.

Supplemental Content

Full text links

Icon for American Physical Society
Loading ...
Support Center