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T-3 temperature dependence and a length scale for the thermal boundary resistance between a saturated dilute 3He-4He solution and sintered silver

Cousins, DJ and Fisher, SN and Guénault, A.M. and Pickett, George and Smith, EN and Turner, RP (1994) T-3 temperature dependence and a length scale for the thermal boundary resistance between a saturated dilute 3He-4He solution and sintered silver. Physical review letters, 73 (19). pp. 2583-2586. ISSN 0031-9007

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Abstract

We have measured the thermal boundary resistance between various configurations of sintered silver and a saturated He-3-He-4 solution between 8 and 150 mK. We observe that there is a length scale involved in the heat flow between sinter and liquid, which manifests itself as a thickness-dependent crossover from a T--1.5 dependence of the resistance at high temperatures to a T-3 behavior at low temperatures. This allows us to extract the Kapitza boundary resistance which we find to vary as T-3, as expected from simple theory, and not as T-2 as suggested by most recent measurements.

Item Type: Article
Journal or Publication Title: Physical review letters
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 65400
Deposited By: ep_importer_pure
Deposited On: 24 Jun 2013 15:03
Refereed?: Yes
Published?: Published
Last Modified: 30 Aug 2017 14:10
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/65400

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