title: Long-range elastic-mediated interaction between nanoparticles adsorbed on free-standing smectic films.
abstract: 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.
authors.affiliation: Instituto de Física, Universidade Federal de Alagoas, 57072-970 Maceió, AL, Brazil.
authors.forename: I N
authors.initials: IN
authors.lastname: de Oliveira
authors.forename: M S S
authors.initials: MS
authors.lastname: Pereira
authors.forename: M L
authors.initials: ML
authors.lastname: Lyra
authors.forename: C
authors.initials: C
authors.lastname: Filgueiras
authors.forename: C
authors.initials: C
authors.lastname: Sátiro
authors.forename: Fernando
authors.initials: F
authors.lastname: Moraes