We report quartz crystal microbalance measurements of the adsorption of neon on surfaces of cesium and rubidium at temperatures up to the critical point of neon. In the case of Ne/Rb there is little adsorption until the temperature approaches 0.97 of Tc, where a wetting transition occurs. In the case of Ne/Cs no adsorption is seen all the way to T = Tc. Instead our data suggest the presence of a vapor film adjacent to the Cs surface when the sample cell is filled with liquid. This may indicate a crossover from wetting to drying.
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy