Earl A. Long, Lothar Meyer
Abstract
The mass flow in adsorbed layers of helium has been measured. Superfluidity occurs at all temperatures below the $\ensuremath{\lambda}$-temperature of the bulk liquid down to 1\textonehalf{} statistical layers. The bearings of these results on the thermodynamics of transition HeI---HeII in adsorbed layers is discussed.
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The mass flow in adsorbed layers of helium has been measured. Superfluidity occurs at all temperatures below the $\ensuremath{\lambda}$-temperature of the bulk liquid down to 1\textonehalf{} statistical layers. The bearings of these results on the thermodynamics of transition HeI---HeII in adsorbed layers is discussed.
Key concepts: Superfluidity, Helium-4, Lambda point, Helium, Adsorption, Helium-3, Thermodynamics, Isotopes of helium