Boundary Tension at the Interface of Nanoscopic Helium Films on an Heterogeneous Substrate

This paper reports the first calculation of the two-dimensional interfacial profile and energetics of nanoscopically thin films of helium, on an heterogeneous planar substrate consisting of two adjoining metals. The calculations are performed in the frame of density functional theory at zero tempera...

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Bibliographic Details
Published in:Journal of low temperature physics 2014-07, Vol.176 (1-2), p.82-92
Main Author: Hernandez, E S
Format: Article
Language:English
Subjects:
Boundaries
Characterization and Evaluation of Materials
Condensed Matter Physics
Density functional theory
Displacement
Keys
Low temperature physics
Magnetic Materials
Magnetism
Mathematical analysis
Nanostructure
Physics
Physics and Astronomy
Thin films
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Summary:This paper reports the first calculation of the two-dimensional interfacial profile and energetics of nanoscopically thin films of helium, on an heterogeneous planar substrate consisting of two adjoining metals. The calculations are performed in the frame of density functional theory at zero temperature, with the purpose of identifying the formation process of the interface at the boundary between the two substrates when few atomic layers are involved, to elucidate the possible relationship of the magnitude of the boundary tension with the displacement of layers between the half films, and to extract keys to organize future calculations of film coexistence at finite temperatures.
ISSN:0022-2291
1573-7357
DOI:10.1007/s10909-014-1143-3