The onset of superfluidity in {sup 4}He films adsorbed in aerogel glass

Journal Article · Sat Oct 31 23:00:00 EST 1992 · Journal of Low Temperature Physics

DOI:https://doi.org/10.1007/BF00694103· OSTI ID:138604

Crowell, P A; Lanzerotti, M Y; Reppy, J D ^[1]

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1. Cornell Univ., Ithaca, NY (United States)

The authors have completed a systematic study of the superfluid density of {sup 4}He films adsorbed in 91% porosity aerogel glass. They have concentrated on the low-coverage regime ({Tc} < 200 mK) in an attempt to address recent theoretical work on the onset of superfluidity in dirty boson systems. Their data are not in agreement with the predictions of a scaling theory of the onset transition developed by Fisher et al. They discuss the extent of this disagreement and the limitations of other models of the onset transition. 8 refs., 3 figs.

• Sponsoring Organization: USDOE
• OSTI ID: 138604
• Report Number(s): CONF-9206305--
• Journal Information: Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 3-4 Vol. 89; ISSN JLTPAC; ISSN 0022-2291
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BOSE-EINSTEIN GAS
COMPARATIVE EVALUATIONS
CURIE POINT
GELS
GLASS
HELIUM 4
SUBSTRATES
SUPERFLUIDITY
THIN FILMS