Thin {sup 3}He films on a disordered substrate: A metal - insulator transition

Journal Article · Mon May 01 04:00:00 EDT 1995 · Journal of Low Temperature Physics

DOI:https://doi.org/10.1007/BF00752286· OSTI ID:107574

Golov, A; Pobell, F ^[1]

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1. Universitaet Bayreuth (Germany)

The heat capacity of thin {sup 3}He films and of liquid {sup 3}He under pressure up to 28 bar in porous Vycor glass has been measured at temperatures 10-600 mK. An evolution from solid (Insulator) to liquid (Metal) behaviour has been observed with increasing the film thickness from one to three atomic layers. At low temperatures the second layer has a temperature independent specific heat. Using a model of {open_quotes}glassy{close_quotes} second layer of {sup 3}He on a rough substrate, that has a broad uniform distribution of the logarithm of nuclear exchange interaction, we calculate its specific heat and susceptibility and compare them with the available experimental data.

• Sponsoring Organization: USDOE
• OSTI ID: 107574
• Report Number(s): CONF-9409365--
• Journal Information: Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 3-4 Vol. 99; ISSN JLTPAC; ISSN 0022-2291
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
ELECTRON CORRELATION
HELIUM 3
MAGNETIC SUSCEPTIBILITY
PHASE TRANSFORMATIONS
SPECIFIC HEAT
TEMPERATURE DEPENDENCE
THIN FILMS
VYCOR