Journal of Low Temperature Physics

, Volume 101, Issue 3, pp 337–342

Investigation of the effect of oxygen impurities on the wetting properties of alkali metal surfaces by liquid helium

Authors

  • B. Demolder
    • Laboratoire- Kastler Brossel, Département de Physique de l'Ecole Normale Supérieure
    • Laboratoire de L'Ecole Normale Supérieure et de L'Université Pierre et Marie Curieassocié au CNRS (URA 18)
  • F. Raad
    • Laboratoire- Kastler Brossel, Département de Physique de l'Ecole Normale Supérieure
    • Laboratoire de L'Ecole Normale Supérieure et de L'Université Pierre et Marie Curieassocié au CNRS (URA 18)
  • J. Dupont-Roc
    • Laboratoire- Kastler Brossel, Département de Physique de l'Ecole Normale Supérieure
    • Laboratoire de L'Ecole Normale Supérieure et de L'Université Pierre et Marie Curieassocié au CNRS (URA 18)
Countributed Posters Wetting

DOI: 10.1007/BF00753317

Cite this article as:
Demolder, B., Raad, F. & Dupont-Roc, J. J Low Temp Phys (1995) 101: 337. doi:10.1007/BF00753317

Abstract

The weak binding properties of heavy alkali metal surfaces for helium have been related to their metallic nature and their particularly small work function. A natural consequence would be that oxidized surfaces should loose their non wetting properties for liquid helium. It is pointed out that the special oxidization process of these metals could unexpectedly lead to an opposite result at some intermediate stage. First experimental results on rubidium shows evidences for such an effect.

PACS numbers

67.70+n67.40.Rp68.45.Gd

Copyright information

© Plenum Publishing Corporation 1995