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artículo con referato
"Adsorption of superfluid 4He films on planar heavy-alkali metals studied with the Orsay-Trento density functional"
L. Szybisz
Phys. Rev. B 67(13) (2003) 132505/1-4
Abstract
The wetting of planar surfaces of alkali metals (Cs, Rb, K, and Na) by superfluid 4He films at T=0K is theoretically studied. Calculations have been carried out by using the Orsay-Trento nonlocal density functional and the adsorption potential of Chizmeshya-Cole-Zaremba. Surface tensions and contact angles are determined for several approximations. We find that the conclusion on the wetting of an Rb substrate is sensible to the gradient-gradient term in the functional and the softness of the He-metal interaction.
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