Liquid-vapor critical point of He4 in aerogel

Apollo P.Y. Wong, M. H.W. Chan

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Abstract

Thermodynamic studies of the liquid-vapor transition of He4 confined in silica aerogel with a porosity of 95% is reported. In spite of the random nature of the pores, sharp heat-capacity signatures are seen. The positions of the sharp peaks are used to map out the liquid-vapor coexistence boundary, which is describable by a power law with an exponent =0.280.05.

Original languageEnglish (US)
Pages (from-to)2567-2570
Number of pages4
JournalPhysical Review Letters
Volume65
Issue number20
DOIs
StatePublished - Jan 1 1990

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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