title: Density profiles of Ar adsorbed in slits of CO2: spontaneous symmetry breaking revisited.
abstract: 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.
authors: Laboratorio TANDAR, Departamento de Física, Comisión Nacional de Energía Atómica, Av. del Libertador 8250, RA-1429 Buenos Aires, Argentina. leszybisz@yahoo.com.br
authors: Leszek
authors: L
authors: Szybisz
authors: Salvador A
authors: SA
authors: Sartarelli
mesh_terms: D000327:Adsorption; D001128:Argon / Q000737:chemistry*; D002245:Carbon Dioxide / Q000737:chemistry*; D003198:Computer Simulation; D008956:Models, Chemical; D013499:Surface Properties
chemical_list: D002245:Carbon Dioxide; D001128:Argon