Heat capacity of 3He in aerogel

K. Yawata; T. M. Haard; G. Gervais; N. Mulders; W. P. Halperin

doi:10.1016/S0921-4526(02)02072-0

Heat capacity of ³He in aerogel

K. Yawata^*, T. M. Haard, G. Gervais, N. Mulders, W. P. Halperin

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

The heat capacity of ³He in a silica aerogel with 98% porosity has been measured in both the normal and superfluid phases at a pressure of 20 bar with an adiabatic method. The results indicate a sharp peak at T_ca = 1.8 mK with ΔC_a/C_a = 1.0 ± 0.1. The value of ΔC_a/C_a for superfluid ³He in aerogel is smaller than that for bulk ³He(= 1.8) directly indicating suppression of the amplitude of the order parameter.

Original language	English (US)
Pages (from-to)	327-328
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	329-333
DOIs	https://doi.org/10.1016/S0921-4526(02)02072-0
State	Published - May 2003
Event	Proceedings of the 23rd international conference on low temper - Hiroshima, Japan Duration: Aug 20 2002 → Aug 27 2002

Keywords

Aerogel
Heat capacity
Superfluid He

ASJC Scopus subject areas

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

Access to Document

10.1016/S0921-4526(02)02072-0

Cite this

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title = "Heat capacity of 3He in aerogel",

abstract = "The heat capacity of 3He in a silica aerogel with 98% porosity has been measured in both the normal and superfluid phases at a pressure of 20 bar with an adiabatic method. The results indicate a sharp peak at Tca = 1.8 mK with ΔCa/Ca = 1.0 ± 0.1. The value of ΔCa/Ca for superfluid 3He in aerogel is smaller than that for bulk 3He(= 1.8) directly indicating suppression of the amplitude of the order parameter.",

keywords = "Aerogel, Heat capacity, Superfluid He",

author = "K. Yawata and Haard, {T. M.} and G. Gervais and N. Mulders and Halperin, {W. P.}",

note = "Funding Information: We acknowledge helpful discussions with D. Osheroff, J. Parpia, and J.A. Sauls. Work supported by the NSF under grant no. DMR-0072350.; Proceedings of the 23rd international conference on low temper ; Conference date: 20-08-2002 Through 27-08-2002",

year = "2003",

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doi = "10.1016/S0921-4526(02)02072-0",

language = "English (US)",

volume = "329-333",

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journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Heat capacity of 3He in aerogel

AU - Yawata, K.

AU - Haard, T. M.

AU - Gervais, G.

AU - Mulders, N.

AU - Halperin, W. P.

N1 - Funding Information: We acknowledge helpful discussions with D. Osheroff, J. Parpia, and J.A. Sauls. Work supported by the NSF under grant no. DMR-0072350.

PY - 2003/5

Y1 - 2003/5

N2 - The heat capacity of 3He in a silica aerogel with 98% porosity has been measured in both the normal and superfluid phases at a pressure of 20 bar with an adiabatic method. The results indicate a sharp peak at Tca = 1.8 mK with ΔCa/Ca = 1.0 ± 0.1. The value of ΔCa/Ca for superfluid 3He in aerogel is smaller than that for bulk 3He(= 1.8) directly indicating suppression of the amplitude of the order parameter.

AB - The heat capacity of 3He in a silica aerogel with 98% porosity has been measured in both the normal and superfluid phases at a pressure of 20 bar with an adiabatic method. The results indicate a sharp peak at Tca = 1.8 mK with ΔCa/Ca = 1.0 ± 0.1. The value of ΔCa/Ca for superfluid 3He in aerogel is smaller than that for bulk 3He(= 1.8) directly indicating suppression of the amplitude of the order parameter.

KW - Aerogel

KW - Heat capacity

KW - Superfluid He

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U2 - 10.1016/S0921-4526(02)02072-0

DO - 10.1016/S0921-4526(02)02072-0

M3 - Conference article

AN - SCOPUS:17144473451

SN - 0921-4526

VL - 329-333

SP - 327

EP - 328

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

T2 - Proceedings of the 23rd international conference on low temper

Y2 - 20 August 2002 through 27 August 2002

ER -