Lancaster EPrints

Vibrating wire measurements in superfluid He-3 at the melting curve down to 0.53 mK.

Todoshchenko, Igor A. and Alles, Harry and Babkin, A. and Parshin, Alexander Y. and Tsepelin, Viktor (2002) Vibrating wire measurements in superfluid He-3 at the melting curve down to 0.53 mK. Journal of Low Temperature Physics, 126 (5-6). pp. 1449-1455. ISSN 0022-2291

Full text not available from this repository.

Abstract

Measurements of the vibrating wire spectrum have been carried out in superfluid He-3 along the melting curve down to 0.53mK. We have observed that at temperatures below 0.3 T-c, the width of the mechanical resonance of the wire decreases exponentially with 1/T, indicating the ballistic regime of collisions with quasiparticles, The value of the superfluid energy gap was found to be (1.99+/-0.05) T-c, in good agreement with the values obtained from heat capacity measurements. The vibrating wire was thereby calibrated for further experiments at temperatures below 0.5 mK, where the sensitivity of the melting curve thermometry becomes rather poor.

Item Type: Article
Journal or Publication Title: Journal of Low Temperature Physics
Uncontrolled Keywords: MILLIKELVIN TEMPERATURES ; THERMOMETRY ; PRESSURE ; HEAT ; TRANSITION ; BEHAVIOR ; LIMIT
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 23527
Deposited By: Dr Richard P. Haley
Deposited On: 03 Feb 2009 10:10
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 16:11
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/23527

Actions (login required)

View Item