Wetting transitions of liquid hydrogen films

E. Cheng, G. Mistura, H. C. Lee, M. H.W. Chan, M. W. Cole, C. Carraro, W. F. Saam, F. Toigo

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Calculations are presented in the wetting properties of liquid hydrogen films on various substrates. The well depth D for the adsorption potential is even smaller for alkali metal substrates than for noble gas surfaces. A simple model calculation leads to the prediction that wetting transitions should then occur at a temperature Tw about 20 K. Quartz microbalance data obtained for H2 on Rb are consistent with this result. Specifically, Tw is found to be 17.89±0.04 K. The wetting phase diagram is found to be in good agreement with thermodynamic expectations.

Original languageEnglish (US)
Pages (from-to)1854-1857
Number of pages4
JournalPhysical Review Letters
Issue number12
StatePublished - Jan 1 1993

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Cheng, E., Mistura, G., Lee, H. C., Chan, M. H. W., Cole, M. W., Carraro, C., Saam, W. F., & Toigo, F. (1993). Wetting transitions of liquid hydrogen films. Physical Review Letters, 70(12), 1854-1857. https://doi.org/10.1103/PhysRevLett.70.1854