Superfluid transition of 4He confined in porous glasses

M. H.W. Chan

doi:10.1016/0921-4526(91)90220-9

Superfluid transition of ⁴He confined in porous glasses

M. H.W. Chan

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Recent results of superfluid density and heat capacity measurements of ⁴He confined in porous Vycor and aerogel glasses of very high porosity are reviewed. These measurements support the interpretation that the superfluid transition of ⁴He confined in Vycor belongs to the same universality class as that of bulk ⁴He. The superfluid density of ⁴He in aerogel glass can be described by a simpel power law to a reduced temperature of 10^-4 K; however, the resultant critical exponent and heat capacity behavior are found to be distinctly different from that of bulk.

Original language	English (US)
Pages (from-to)	135-143
Number of pages	9
Journal	Physica B: Physics of Condensed Matter
Volume	169
Issue number	1-4
DOIs	https://doi.org/10.1016/0921-4526(91)90220-9
State	Published - Feb 2 1991

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/0921-4526(91)90220-9

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title = "Superfluid transition of 4He confined in porous glasses",

abstract = "Recent results of superfluid density and heat capacity measurements of 4He confined in porous Vycor and aerogel glasses of very high porosity are reviewed. These measurements support the interpretation that the superfluid transition of 4He confined in Vycor belongs to the same universality class as that of bulk 4He. The superfluid density of 4He in aerogel glass can be described by a simpel power law to a reduced temperature of 10-4 K; however, the resultant critical exponent and heat capacity behavior are found to be distinctly different from that of bulk.",

author = "Chan, \{M. H.W.\}",

note = "Funding Information: The work described above is done in collaboration with ,Ken Blum, Paul Crowell, Sheena Murphy, Gane Wang and John Reppy at Cornell University, Keith Gillis, Dan Finotello, Jian Ma, Sid Mukherjee, and Apollo Wong at Pennsylvania State University. It has been a great pleasure to work with them. The author acknowledges constructive conversations with a number of colleagues, especially Jon Machta. M.E. Fisher and J.D. Reppy. He is particularly grateful for the enduring friendship and encouragement given by J.D. Reppy. The figures for this paper are drawn by Sheena Murphy and Apollo Wong. Research done at Pennsylvania State University is supported by NSF through grants, DMR-8701681 and DMR 9008461.",

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doi = "10.1016/0921-4526(91)90220-9",

language = "English (US)",

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AU - Chan, M. H.W.

N1 - Funding Information: The work described above is done in collaboration with ,Ken Blum, Paul Crowell, Sheena Murphy, Gane Wang and John Reppy at Cornell University, Keith Gillis, Dan Finotello, Jian Ma, Sid Mukherjee, and Apollo Wong at Pennsylvania State University. It has been a great pleasure to work with them. The author acknowledges constructive conversations with a number of colleagues, especially Jon Machta. M.E. Fisher and J.D. Reppy. He is particularly grateful for the enduring friendship and encouragement given by J.D. Reppy. The figures for this paper are drawn by Sheena Murphy and Apollo Wong. Research done at Pennsylvania State University is supported by NSF through grants, DMR-8701681 and DMR 9008461.

PY - 1991/2/2

Y1 - 1991/2/2

N2 - Recent results of superfluid density and heat capacity measurements of 4He confined in porous Vycor and aerogel glasses of very high porosity are reviewed. These measurements support the interpretation that the superfluid transition of 4He confined in Vycor belongs to the same universality class as that of bulk 4He. The superfluid density of 4He in aerogel glass can be described by a simpel power law to a reduced temperature of 10-4 K; however, the resultant critical exponent and heat capacity behavior are found to be distinctly different from that of bulk.

AB - Recent results of superfluid density and heat capacity measurements of 4He confined in porous Vycor and aerogel glasses of very high porosity are reviewed. These measurements support the interpretation that the superfluid transition of 4He confined in Vycor belongs to the same universality class as that of bulk 4He. The superfluid density of 4He in aerogel glass can be described by a simpel power law to a reduced temperature of 10-4 K; however, the resultant critical exponent and heat capacity behavior are found to be distinctly different from that of bulk.

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DO - 10.1016/0921-4526(91)90220-9

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JO - Physica B: Physics of Condensed Matter

JF - Physica B: Physics of Condensed Matter

IS - 1-4

ER -

Superfluid transition of ⁴He confined in porous glasses

Abstract

All Science Journal Classification (ASJC) codes

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