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Very low density helium-3 films on grafoil — the substrate inhomogeneity

Authors
Journal
Physics Letters A
0375-9601
Publisher
Elsevier
Publication Date
Volume
106
Identifiers
DOI: 10.1016/0375-9601(84)90492-4

Abstract

Abstract Pulsed NMR measurements on very low density films of helium-3 have been performed. Fractions of a full monolayer between 0.005 and 0.070 are reported. Our results indicate that the first percent or so of a monolayer is adsorbed in relatively high density immobile patches. At greater coverages the excess adsorbate forms a two-dimensional gas. For the full range of coverages reported the T 2 relaxation mechanism is the internuclear dipolar interaction of the immobile patches.

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