Article ID Journal Published Year Pages File Type
9781640 Journal of Physics and Chemistry of Solids 2005 4 Pages PDF
Abstract
We measured the slippage of nonsuperfluid 4He films adsorbed on a porous gold substrate using the quartz-crystal microbalance (QCM) technique. The substrate has a highly uniform porous structure, and its effective surface area was 20 times larger than that of a flat substrate. It was found that the degree of slippage between 4He films and the substrate increases below a certain temperature TS, and that TS decreases with increasing 4He areal density. This increase depends strongly on the oscillating amplitude of the quartz crystal.
Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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