Thin helium film on a glass substrate

Details Thin helium film on a glass substrate Thin helium film on a glass substrate

2009-11-17

arxiv.org/abs/0911.3334v3

J. Low Temp. Phys. 159, 441 (2010)

Physics

Condensed Matter

Statistical Mechanics

Six figures, submitted for publication to the Journal of Low Temperature Physics

Scientific paper

10.1007/s10909-009-0143-1

We investigate by Monte Carlo simulations the structure, energetics and superfluid properties of thin helium-four films (up to four layers) on a glass substrate, at low temperature. The first adsorbed layer is found to be solid and "inert", i.e., atoms are localized and do not participate to quantum exchanges. Additional layers are liquid, with no clear layer separation above the second one. It is found that a single helium-three impurity resides on the outmost layer, not significantly further away from the substrate than helium-four atoms on the same layer.

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