Adsorption isotherms of H-2 and He-4 on Rb measured with a quartz microbalance are presented. They clearly show sharp prewetting transitions. For H-2 on Rb a wetting temperature T(W)= 17.89+/-0.04K is found. He-4 isotherms below the lambda point show the characteristic frequency drop due to superfluid onset.
Quartz Microbalance Study of Hydrogen and Helium Adsorbed On A Rubidium Surface
MISTURA, GIAMPAOLO;
1994
Abstract
Adsorption isotherms of H-2 and He-4 on Rb measured with a quartz microbalance are presented. They clearly show sharp prewetting transitions. For H-2 on Rb a wetting temperature T(W)= 17.89+/-0.04K is found. He-4 isotherms below the lambda point show the characteristic frequency drop due to superfluid onset.File in questo prodotto:
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