Long-range elastic-mediated interaction between nanoparticles adsorbed on free-standing smectic films.
We determine the elastic-mediated interaction between colloidal nanoparticles adsorbed on the surface of free-standing smectic films. In contrast with the short-range character of the elastic-mediated force between particles adsorbed on smectic films supported by a solid substrate, the effective force acquires a long-range character in free-standing films, decaying with the particles distance R as slow as 1/R . We also discuss the dependence of the effective interaction potential on the surface tension gamma and film thickness. We show that it decays as 1/gamma in the regime of large surface tensions and becomes independent of the film thickness at a characteristic surface tension.
de Oliveira
I N
IN
Instituto de Física, Universidade Federal de Alagoas, 57072-970 Maceió, AL, Brazil.
Pereira
M S S
MS
Lyra
M L
ML
Filgueiras
C
C
Sátiro
C
C
Moraes
Fernando
F