Density functional theory simulation of liquid helium-4 in aerogel

Lysogorskiy, Yury; Tayurskiı̆, D. A.

doi:10.1134/s0021364013170104

Search citation statements

Order By: Relevance

Paper Sections

Select...

Introduction1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2016

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

(1 citation statement)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Simulations of helium adsorption in different media such as a graphene nanotube [14] and a porous material called aerogel [15,16] within different variations of DFT methods have recently been obtained. All the results show that DFT methods give an accurate description of the adsorption phenomenon.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Helium Atoms on Two-Dimensional Substrates

et al. 2016

View full text Add to dashboard Cite

The study of the adsorption phenomenon of helium began many decades ago with the discovery of graphite as a homogeneous substrate for investigation of physically adsorbed monolayer films. In particular, helium monoatomic layers on graphite were found to exhibit a very rich phase diagram.In the present work we have investigated the adsorption phenomenon of helium atoms on graphene and silicene substrates by means of density functional theory with Born-Oppenheimer approximation. Helium-substrate and helium-helium interactions were considered from first principles. Vibrational properties of adsorbed monolayers have been used to explore the stability of the system. This approach reproduces results describing the stability of a helium monolayer on graphene calculated by quantum Monte Carlo (QMC) simulations for low and high coverage cases. However, for the moderate coverage value there is discrepancy with QMC results due to the lack of helium zero point motion.

show abstract

Section: Introductionmentioning

confidence: 99%