Abstract
We have made adsorption measurements of He4 on a copper sponge preplated with a series of noble-gas layers. The behavior of the isosteric heat of adsorption and the partial molar entropy of submonolayer He4 on these substrates is presented and discussed. The general behavior is of a rapid decrease in the average entropy of the helium as helium coverage is increased, on all substrates. Changing the substrate seems only to change scaling factors in the behavior of the helium film.
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Work supported in part by a Frederick Gardner Cottrell Grant-In-Aid from the Research Corporation, New York.
Alfred P. Sloan Research Fellow.
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Wallace, J.L., Goodstein, D.L. He4 on copper: Some effects of preadsorbed noble-gas layers. J Low Temp Phys 3, 283–300 (1970). https://doi.org/10.1007/BF00628153
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DOI: https://doi.org/10.1007/BF00628153