Van der Waals Potentials of 4 He Derived from Adsorption Isotherms

Van der Waals potentials for thin 4 He films on glass and on diamond are deduced from helium adsorption measurements. Significant deviations from the expected cubic dependence on the areal mass density are found. The commonly used values for glass appear to be much too small.

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Bibliographic Details
Published in	Japanese Journal of Applied Physics Vol. 26; no. S3-1; p. 339
Main Authors	Brocken, M. G. M., Andel, I. van, Geleijns, J., Beelen, H. van
Format	Journal Article
Language	English
Published	01.01.1987
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Summary:	Van der Waals potentials for thin 4 He films on glass and on diamond are deduced from helium adsorption measurements. Significant deviations from the expected cubic dependence on the areal mass density are found. The commonly used values for glass appear to be much too small.
ISSN:	0021-4922 1347-4065
DOI:	10.7567/JJAPS.26S3.339