Low-Temperature Specific Heats of Adsorbed Helium Monolayers in the Mobile Limit
- 1 April 1973
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 7 (4), 1322-1328
- https://doi.org/10.1103/physreva.7.1322
Abstract
Jackson's model for adsorbed helium monolayers is suitable for studying thermodynamic properties in the mobile limit. In particular, low-temperature specific heats can be calculated over a range of areal densities. The dominant contributions come from longitudinal surface phonons. We report here (i) an extension of Jackson's model to account for surface-phonon—surface-phonon interactions, (ii) computations of low-temperature specific heats to several coverages, and (iii) a comparison of the computed results to experiment.Keywords
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