Helium density plots of a helium nanodroplet with two impurities
In my paper I did a case study of van der Waals interactions between heliophilic and heliophobic dopants. The nano-droplet is subsequently doped with xenon, a highly polarizeable rare gas element and rubidium, an alkali-metal used as e.g. EPR spin probe. The heliophilic xenon goes straight to the centre of the droplet, it is relative strongly bound to the helium. Rubidium by contrast is not wettable by helium, the heliophopic element forms a dimple structure on the surface. With the help of the Orsay-Trento functional the helium density is calculated with different positions of the two dopants. Energy minimization leads to the best configuration.
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Helium density plot of a helium droplet with two impurities:
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Helium density plot of a helium nanodroplet with two impurities:
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[Paper]: Poms, J.; Hauser, A. W.; Ernst, W.: Helium nanodroplets doped with xenon and rubidium atoms: a case study of van der Waals interactions between heliophilic and heliophobic dopants – in Physical Chemistry Chemical Physics 14 (2012), S. 15158–15165