Heat Capacity and Superfluid Density of Thin 4He Films on Porous Gold and on H2

Gábor A. Csáthy; Daryl Tulimieri; Jongsoo Yoon; Moses H.W. Chan

doi:10.1103/PhysRevLett.80.4482

Heat Capacity and Superfluid Density of Thin ⁴He Films on Porous Gold and on H₂

Gábor A. Csáthy, Daryl Tulimieri, Jongsoo Yoon, Moses H.W. Chan

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34 Scopus citations

Abstract

We report simultaneous measurement of the superfluid density and heat capacity of thin ⁴He films on porous gold and on gold preplated with H₂. The superfluid density shows a crossover from 2D-like to 3D critical behavior for temperatures close to T_c, the transition temperature. On both substrates we observe an unexpected heat capacity signature associated with the superfluid layer well below T_c.

Original language	English (US)
Pages (from-to)	4482-4485
Number of pages	4
Journal	Physical review letters
Volume	80
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevLett.80.4482
State	Published - 1998

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.80.4482

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abstract = "We report simultaneous measurement of the superfluid density and heat capacity of thin 4He films on porous gold and on gold preplated with H2. The superfluid density shows a crossover from 2D-like to 3D critical behavior for temperatures close to Tc, the transition temperature. On both substrates we observe an unexpected heat capacity signature associated with the superfluid layer well below Tc.",

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AU - Chan, Moses H.W.

PY - 1998

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AB - We report simultaneous measurement of the superfluid density and heat capacity of thin 4He films on porous gold and on gold preplated with H2. The superfluid density shows a crossover from 2D-like to 3D critical behavior for temperatures close to Tc, the transition temperature. On both substrates we observe an unexpected heat capacity signature associated with the superfluid layer well below Tc.

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Heat Capacity and Superfluid Density of Thin ⁴He Films on Porous Gold and on H₂

Abstract

All Science Journal Classification (ASJC) codes

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