On the existence of supersolid helium-4 monolayer films

Abstract

Extensive Monte Carlo simulations of helium-4 monolayer films adsorbed on weak substrates have been carried out, aimed at ascertaining the possible occurrence of a quasi-two-dimensional supersolid phase. Only crystalline films not registered with underlying substrates are considered. Numerical results yield strong evidence that helium-4 will not form a supersolid film on {any} substrate strong enough to stabilize a crystalline layer. On weaker substrates, continuous growth of a liquid film takes place.

References in corpus (5)

• Worm Algorithm and Diagrammatic Monte Carlo: A New Approach to Continuous-Space Path Integral Monte Carlo Simulations
• Phase diagram of 4He adsorbed on graphite
• Thin helium film on a glass substrate
• Ground-state properties and superfluidity of two- and quasi two-dimensional solid 4He
• Molecular hydrogen isotopes adsorbed on krypton-preplated graphite: Quantum Monte Carlo simulations

Cited by in corpus (6)

• Absence of superfluidity in 2D dipolar Bose striped crystals
• Novel behaviors of monolayer quantum gases on Graphene, Graphane and Fluorographene
• Nanomechanical resonators for cryogenic research
• Absence of superfluidity in a parahydrogen film intercalated within a crystal of Na atoms
• Specific heat of thin ${}^4$He films on graphite
• Quantum Monte Carlo study of thin parahydrogen films on graphite