Editorial note: This review article was received by K. Dransfeld.
Hydrogen and helium films as model systems of wetting
Article first published online: 14 MAR 2006
Copyright © 1997 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Annalen der Physik
Volume 509, Issue 6, pages 425–447, 1997
How to Cite
Herminghaus, S., Vorberg, J., Gau, H., Conradt, R., Reinelt, D., Ulmer, H., Leiderer, P. and Przyrembel, M. (1997), Hydrogen and helium films as model systems of wetting. Ann. Phys., 509: 425–447. doi: 10.1002/andp.19975090602
In many cases, M2 denotes a gas, such as the gas phase of M1, but this does not need to be the case.
- Issue published online: 14 MAR 2006
- Article first published online: 14 MAR 2006
- Manuscript Revised: 17 MAR 1997
- Manuscript Accepted: 17 MAR 1997
- Manuscript Received: 23 FEB 1997
- the Deutsche Forschungsgemeinschaft. Grant Numbers: SFB 306, Le 315/18
- Surface plasmon;
- Quantum liquids
Optical experiments on the wetting properties of liquid 4He and molecular hydrogen are reviewed. Hydrogen films on noble metal surfaces serve as model systems for studying triple point wetting, a continuous transition between wetting and non-wetting. By means of optically excited surface plasmons, the adsorbed film thickness for temperatures around, and far below, the bulk melting temperature is measured, and the physical mechanisms responsible for the transition are elucidated. Possible applications for other experiments in pure and applied research are discussed. Thin films and droplets of liquid helium are studied on cesium surfaces, on which there is a first order wetting transition. Our studies concentrate on dynamical observations via surface plasmon microscopy, which provide insight into the morphology of liquid helium droplets spreading at different temperatures. Features corresponding to pinning forces, the prewetting line, and the Kosterlitz-Thouless transition are clearly observed.