Superfluid Transition of 4He in Porous Gold

Jongsoo Yoon; Moses H.W. Chan

doi:10.1103/PhysRevLett.78.4801

Superfluid Transition of ⁴He in Porous Gold

Jongsoo Yoon, Moses H.W. 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 language	English (US)
Pages (from-to)	4801-4804
Number of pages	4
Journal	Physical review letters
Volume	78
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.78.4801
State	Published - Jun 23 1997

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.78.4801

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title = "Superfluid Transition of 4He in Porous Gold",

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.",

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AB - 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.

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DO - 10.1103/PhysRevLett.78.4801

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Superfluid Transition of ⁴He in Porous Gold

Abstract

All Science Journal Classification (ASJC) codes

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