3He-Layers on Graphite
โ Scribed by H.J. Lauter; H. Godfrin; V.L.P. Frank; H.P. Schildberg
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 241 KB
- Volume
- 165-166
- Category
- Article
- ISSN
- 0921-4526
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โฆ Synopsis
Neutron diffraction studies show that in the monolayer of 3He on graphite the commensurate phase is separated from the incommensurate phase by a domain wall phase. Under the pressure of the second adsorbed layer the fit layer is driven into an 8*8 commensurability with the substrate. This coincides probably with events seen in NMR (1) and heat capacity measurements (2) in the same coverage region.
๐ SIMILAR VOLUMES
Precise heat capacity data have been obtained for multilayers of 3He adsorbed on graphite in the temperature range between 2 and 200 mK. As a function of total coverage, these data show an accurate correspondence with special features in recent magnetization measurements but suggest models very diff
Calorimetric measurements on 3 He-4 He monolayers by Hickernell, McLean, and Vilches indicate that isotopic ordering takes place in both the low-denszty and registered lattice gas regimes. The low-density film heat capacity corresponds to imperfect 2D gas mixtures above T "-1 K. At lower temperature