Second virial coefficient of helium adsorbed on liquid hydrogen

The nonlinear dependence of the surface energy of liquid hydrogen as a function of the density of helium gas in equilibrium with the liquid surface has been used to determine the second virial coefficient of the two-dimensional gas of helium atoms adsorbed on the surface. The surface energy of both...

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Veröffentlicht in:	Physical review. B, Condensed matter Condensed matter, 1994-08, Vol.50 (5), p.3134-3138
Hauptverfasser:	Paine, CG, Seidel, GM
Format:	Artikel
Sprache:	eng
Schlagworte:	665430 - Other Topics in Quantum Fluids & Solids- (1992-) ADSORPTION CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ELEMENTS ENERGY EQUATIONS FLUIDS FREE ENERGY GASES HELIUM HYDROGEN LIQUIDS NONMETALS PHYSICAL PROPERTIES RARE GASES SORPTION SORPTIVE PROPERTIES SURFACE ENERGY SURFACE PROPERTIES TEMPERATURE DEPENDENCE THERMODYNAMIC PROPERTIES VIRIAL EQUATION
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Beschreibung
Zusammenfassung:	The nonlinear dependence of the surface energy of liquid hydrogen as a function of the density of helium gas in equilibrium with the liquid surface has been used to determine the second virial coefficient of the two-dimensional gas of helium atoms adsorbed on the surface. The surface energy of both liquid hydrogen and liquid deuterium has been measured in the presence of [sup 4]He and [sup 3]He. The experimental results are in rough agreement with theoretical prediction.
ISSN:	0163-1829 1095-3795
DOI:	10.1103/PhysRevB.50.3134