Heat Capacity of H3e in Aerogel

Jizhong He, A. D. Corwin, J. M. Parpia, and J. D. Reppy
Phys. Rev. Lett. 89, 115301 – Published 23 August 2002

Abstract

The heat capacity of pure H3e in low density aerogel is measured at 22.5 bars. The superfluid response is simultaneously monitored with a torsional oscillator. A slightly rounded heat capacity peak, 65   μK in width, is observed at the H3e-aerogel superfluid transition, Tca. Subtracting the bulk H3e contribution, the heat capacity shows a Fermi-liquid form above Tca. We can fit the heat capacity attributed to superfluid within the aerogel with a rounded BCS form accounting for 0.30 of the nonbulk fluid in the aerogel, or by assuming a substantial reduction in the superfluid order parameter. Both approaches are consistent with earlier superfluid density measurements.

  • Figure
  • Figure
  • Figure
  • Received 2 May 2002

DOI:https://doi.org/10.1103/PhysRevLett.89.115301

©2002 American Physical Society

Authors & Affiliations

Jizhong He, A. D. Corwin, J. M. Parpia, and J. D. Reppy

  • Laboratory of Atomic and Solid State Physics and the CCMR, Cornell University, Ithaca, New York 14853-2501

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 89, Iss. 11 — 9 September 2002

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×