The effect of a strong magnetic field on the damping of second sound in dilute 3He-4He mixtures below 100 mK

Owers-Bradley, John, Main, P. C., Church, R. J., Hampson, T. M. M., McHale, Glen and Bowley, Roger (1989) The effect of a strong magnetic field on the damping of second sound in dilute 3He-4He mixtures below 100 mK. Journal of Low Temperature Physics, 77 (5-6). pp. 327-346. ISSN 0022-2291

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Official URL: https://doi.org/10.1007/BF00682749

Abstract

We have measured the increase in damping of second sound in 0.1% and 0.05% 3He-4He solutions upon application of a magnetic field of 10 T. The increase is caused by changes in the thermal conductivity and viscosity of the mixture as the system becomes spin polarized. We show how to fit the data for the viscosity in zero-field to obtain an estimate of the interaction between the3He quasiparticles. It is then possible to predict the viscosity in a field of 10 T using the calculation of Hampson et al. The data agree with the theory to within 2%.

Item Type: Article
Subjects: F300 Physics
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Paul Burns
Date Deposited: 09 Jun 2017 10:28
Last Modified: 24 Oct 2017 08:55
URI: http://nrl.northumbria.ac.uk/id/eprint/31019

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