Superfluid Transition of 4He in Porous Gold

Jongsoo Yoon, Moses Hung-Wai Chan

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Abstract

We have measured the superfluid density and the heat capacity of 4He confined in porous gold in order to study the effect of quenched disorder on the superfluid transition. The superfluid density exponent is found to be identical to that of bulk 4He within experimental resolution. The heat capacity shows a sharp peak at the transition temperature. The size of the peak appears to be larger than that predicted by critical phenomena theory.

Original languageEnglish (US)
Pages (from-to)4801-4804
Number of pages4
JournalPhysical Review Letters
Volume78
Issue number25
DOIs
Publication statusPublished - Jun 23 1997

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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