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artículo con referato
"Density profiles of Ar adsorbed in slits of CO2: Spontaneous symmetry breaking revisited"
L. Szybisz and S.A. Sartarelli
J. Chem. Phys. 128(12) (2008) 124702/1-8
A recently reported symmetry breaking of density profiles of fluid argon confined by two parallel solid walls of carbon dioxide is studied. The calculations are performed in the framework of a nonlocal density functional theory. It is shown that the existence of such asymmetrical solutions is restricted to a special choice for the adsorption potential, where the attraction of the solid-fluid interaction is reduced by the introduction of a hard-wall repulsion. The behavior as a function of the slit.s width is also discussed. All the results are placed in the context of the current knowledge on this matter.
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