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Symmetry breaking of the fluid density profiles in closed nanoslits
Gersh O Berim1, Eli Ruckenstein
1Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, New York 14260, USA.
Abstract:
The density profiles in a fluid interacting with the two identical solid walls of a closed long slit were calculated for wide ranges of the number of fluid molecules in the slit and temperature by employing a nonlocal density functional theory. Using argon as the sample fluid and considering the walls composed of solid carbon dioxide, it is shown that the density profile corresponding to the stable state of the fluid considerably changes its shape with increasing average density rho(av) of the fluid inside the slit. Temperature dependent critical values rho(sb1) and rho(sb2) of rho(av) were identified, such that for rho(sb1)
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