Determination of the thermodynamic phases of {sup 4}He adsorbed on H{sub 2} plated graphite

Journal Article · Wed Nov 01 04:00:00 EST 1995 · Journal of Low Temperature Physics

DOI:https://doi.org/10.1007/BF00753339· OSTI ID:183408

Ebey, P S; Vilches, O E ^[1]

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1. Univ. of Washington, Seattle, WA (United States)

Thermodynamic measurements have been used to investigate the surface phases of monolayer {sup 4}He adsorbed on graphite plated with 1.45, 2.15, and 3.15 layers of H{sub 2}. In each case the {sup 4}He preferentially adsorbed on the lower completed layer. In this paper we report the measurements of {sup 4}He on the 1.45 layer H{sub 2} graphite plating. For this plating the {sup 4}He goes into a condensed phase below 0.87 K. The high temperature-low density film entropy has been calculated.

• Sponsoring Organization: USDOE
• OSTI ID: 183408
• Report Number(s): CONF-950676--; CNN: Grant DMR 92-20729
• Journal Information: Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 3-4 Vol. 101; ISSN JLTPAC; ISSN 0022-2291
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
ADSORPTION
ENTROPY
GRAPHITE
HELIUM 4
HYDROGEN
SPECIFIC HEAT
THERMODYNAMIC PROPERTIES