Specific Heat of Helium at Constant Volume along the Lambda Line

Journal Article · Thu Sep 07 00:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2354637· OSTI ID:20877519

Lipa, J A; Nissen, J A; Avaloff, D; Wang, Suwen ^[1]

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1. Hansen Experimental Physics Laboratory, Stanford University, Stanford, CA 94305 (United States)

We report new measurements of the constant-volume specific heat of helium along the lambda line from 0.15 to 24.4 bars. The pressure in the cell was also recorded as a function of temperature using a gauge with a superconducting readout. This data can be used to convert the results to the constant-pressure specific heat along isobars. The constant-volume data compare well with earlier results and extend the temperature range of the measurements much closer to the lambda line. A preliminary conversion to Cp(T,P) indicates good agreement with universality.

• OSTI ID: 20877519
• Journal Information: AIP Conference Proceedings, Vol. 850, Issue 1; Conference: LT24: 24. international conference on low temperature physics, Orlando, FL (United States), 10-17 Aug 2005; Other Information: DOI: 10.1063/1.2354637; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COMPARATIVE EVALUATIONS
CONVERSION
HELIUM
HELIUM 4
SPECIFIC HEAT
SUPERFLUIDITY
TEMPERATURE DEPENDENCE