Abstract
Detailed heat-capacity measurements have been made over the rangex=0.03–1.15 monolayers and the temperature rangeT=1–10 K. A small, on-line computer acquired and reduced the data in a very reproducible manner. Vapor-pressure measurements indicate that the substrate is strongly heterogeneous. The heat capacity, while qualitatively similar to previous data on Ar-plated copper, is best explained by a model based on extreme surface heterogeneity.
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Work supported by the National Science Foundation.
Based in part on the Ph.D. thesis of D. W. Princehouse, University of Washington, 1971; unpublished.
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Princehouse, D.W. High-resolution heat-capacity study of4He adsorbed on bare copper. J Low Temp Phys 8, 287–303 (1972). https://doi.org/10.1007/BF00655085
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DOI: https://doi.org/10.1007/BF00655085