Superfluid transition of 4He in ultralight aerogel

Jongsoo Yoon; Dmitri Sergatskov; Jian Ma; Norbert Mulders; Moses Hung-Wai Chan

doi:10.1103/PhysRevLett.80.1461

Superfluid transition of 4He in ultralight aerogel

Jongsoo Yoon, Dmitri Sergatskov, Jian Ma, Norbert Mulders, Moses Hung-Wai Chan

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56 Scopus citations

Abstract

We present superfluid density and heat capacity results of 4He entrained in 5%, 2%, and 0.5% dense silica aerogel. The superfluid density exponent shows a systematic decrease towards the bulk 4He value with decreasing aerogel density. Singular contribution to heat capacity is observed on both sides of the transition in aerogel of 2% and 0.5% silica. In the lightest sample, the scaling law α=α and the hyperscaling relation 2-α=dν=dζ are satisfied.

Original language	English (US)
Pages (from-to)	1461-1464
Number of pages	4
Journal	Physical Review Letters
Volume	80
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevLett.80.1461
State	Published - Feb 16 1998

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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title = "Superfluid transition of 4He in ultralight aerogel",

abstract = "We present superfluid density and heat capacity results of 4He entrained in 5%, 2%, and 0.5% dense silica aerogel. The superfluid density exponent shows a systematic decrease towards the bulk 4He value with decreasing aerogel density. Singular contribution to heat capacity is observed on both sides of the transition in aerogel of 2% and 0.5% silica. In the lightest sample, the scaling law α=α and the hyperscaling relation 2-α=dν=dζ are satisfied.",

author = "Jongsoo Yoon and Dmitri Sergatskov and Jian Ma and Norbert Mulders and Chan, {Moses Hung-Wai}",

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T1 - Superfluid transition of 4He in ultralight aerogel

AU - Yoon, Jongsoo

AU - Sergatskov, Dmitri

AU - Ma, Jian

AU - Mulders, Norbert

AU - Chan, Moses Hung-Wai

PY - 1998/2/16

Y1 - 1998/2/16

N2 - We present superfluid density and heat capacity results of 4He entrained in 5%, 2%, and 0.5% dense silica aerogel. The superfluid density exponent shows a systematic decrease towards the bulk 4He value with decreasing aerogel density. Singular contribution to heat capacity is observed on both sides of the transition in aerogel of 2% and 0.5% silica. In the lightest sample, the scaling law α=α and the hyperscaling relation 2-α=dν=dζ are satisfied.

AB - We present superfluid density and heat capacity results of 4He entrained in 5%, 2%, and 0.5% dense silica aerogel. The superfluid density exponent shows a systematic decrease towards the bulk 4He value with decreasing aerogel density. Singular contribution to heat capacity is observed on both sides of the transition in aerogel of 2% and 0.5% silica. In the lightest sample, the scaling law α=α and the hyperscaling relation 2-α=dν=dζ are satisfied.

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JO - Physical Review Letters

JF - Physical Review Letters

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