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Measuring the Heat Capacity of Superfluid ^4He in the Presence of a Heat Flux Near T_⋋: Progress and Prospects

Harter, A. W. and Lee, R. A. M. and Chui, T.C. P. and Goodstein, D. L. (1998) Measuring the Heat Capacity of Superfluid ^4He in the Presence of a Heat Flux Near T_⋋: Progress and Prospects. Journal of Low Temperature Physics, 113 (3/4). pp. 549-554. ISSN 0022-2291. doi:10.1023/A:1022528901745.

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It has been predicted that the heat capacity of superfluid ^4He will diverge strongly at a depressed transition temperature in the presence of a constant heat flux, Q. We have built a cell to measure this effect, and have taken preliminary measurements at various heat flux values. Our data indicate an enhancement of the heat capacity that varies as a function of Q. However, the temperature dependence of our measurements leads us to believe that our initial findings were affected by spurious heat flow.

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Lee, R. A. M.0000-0001-6509-697X
Additional Information:© 1998 Plenum Publishing Corporation. We would like to thank Peter Weichman, Robert Duncan, and William Weber for helpful discussions. The research reported in this paper was carried out in collaboration between the Physics Dept. and the Jet Propulsion Laboratory of the California Institute of Technology under a contract with the National Aeronautics and Space Administration.
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Issue or Number:3/4
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ID Code:62968
Deposited By: Ruth Sustaita
Deposited On:16 Dec 2015 19:43
Last Modified:10 Nov 2021 23:09

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