My watch list
my.chemeurope.com  
Login  

We present for the first time the quasi-free electron energy V 0(ρ) in helium from low density to the density of the triple point liquid (gaseous helium/liquid helium I/liquid helium II triple point), on a noncritical isotherm and on an isotherm near the critical temperature. These data were obtained using field enhanced photoemission, a new experimental technique for the characterization of dense fluids. A novel critical point effect in helium is presented and is accurately fitted to the local Wigner–Seitz model. This model, which was developed for attractive fluids, is thereby shown to be applicable to repulsive fluids as well.
Graphical abstract Graphical abstract Highlights

  • ► Field enhanced photoemission (FEP) is used to experimentally determine V 0(ρ) in He. ► V 0(ρ) in He from low density to the gas/liquid He (I)/liquid He (II) triple point is obtained. ► Critical point effect in V 0(ρ) in He is presented for the first time. ► Local Wigner–Seitz approach, developed for attractive fluids, is shown to model V 0(ρ) in He.

    Authors:   Yevgeniy Lushtak, Samantha B. Dannenberg, C.M. Evans, G.L. Findley
    Journal:   Chemical Physics Letters
    Year:   2012
    DOI:   10.1016/j.cplett.2012.04.026
    Publication date:   28-05-2012
  • Watchlist

    This is where you can add this publication to your personal favourites.

    Additional Information

    Facts, background information, dossiers
    More about Elsevier
    Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE