Thin helium film on a glass substrate

Abstract

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.

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

References in corpus (3)

• Worm Algorithm and Diagrammatic Monte Carlo: A New Approach to Continuous-Space Path Integral Monte Carlo Simulations
• Superfluidity and Quantum Melting of para-Hydrogen clusters
• Phase diagram of 4He adsorbed on graphite

Cited by in corpus (11)

• Helium-4 Luttinger liquids in nanopores
• Phase diagram of ${}^4$He on graphene
• Local Superfluidity at the Nanoscale
• On the existence of supersolid helium-4 monolayer films
• Elastic Anomaly of Helium Films at a Quantum Phase Transition
• Dimensional crossover of a boson gas in multilayers
• Topological quantum phases of ${}^4$He confined to nanoporous materials
• Superfluidity of 4He nanoclusters in confinement
• Low-temperature Depletion of Superfluid Density in the Absence of Galilean Symmetry
• Thin He-4 films on alkali substrates: where do He-3 atoms bind?
• Bound state of a He-3 atom at the interface of crystal and superfluid He-4