Heat-Capacity Measurements of Thin 4He Films in Porous Silica-gel Glass

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Copyright (c) 1987 The Japan Society of Applied Physics
, , Citation D. Finotello et al 1987 Jpn. J. Appl. Phys. 26 283 DOI 10.7567/JJAPS.26S3.283

1347-4065/26/S3-1/283

Abstract

We report precision heat capacity results of submonolayer and near monolayer 4He films adsorbed in porous silica-gel glass. Measurements were performed down to 0.1 K on films up to 26 µmole/m2. These coverages are below the critical value for superfluid onset and thought to be localized and solid-like. A coverage dependent heat capacity anomaly near 0.25 K was found, indicating a possible phase transition.

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10.7567/JJAPS.26S3.283