Zero-point vibrational energy of an adsorbed film

James F. Annett, Milton Walter Cole, Peter B. Shaw, Richard M. Stratt

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

The ground-state energy of a submonolayer4He film is studied, taking into account vibration perpendicular to the surface. We use an adiabatic approximation that evaluates the z motion with the surface-parallel coordinates x, y of the atoms held fixed. The coupled atoms' dynamical equations are solved using various assumptions, all of which yield a similar result. The numerical results for the zero point energy indicate that4He does not form a 2D liquid at zero temperature on K, Rb, or Cs surfaces; instead it is a quantum gas.

Original languageEnglish (US)
Pages (from-to)1-17
Number of pages17
JournalJournal of Low Temperature Physics
Volume84
Issue number1-2
DOIs
StatePublished - Jul 1 1991

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Annett, J. F., Cole, M. W., Shaw, P. B., & Stratt, R. M. (1991). Zero-point vibrational energy of an adsorbed film. Journal of Low Temperature Physics, 84(1-2), 1-17. https://doi.org/10.1007/BF00681614