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

John Owers-Bradley, P. C. Main, R. J. Church, T. M. M. Hampson, Glen McHale, Roger Bowley

Research output: Contribution to journalArticlepeer-review

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 the 3He 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%.
Original languageEnglish
Pages (from-to)327-346
Number of pages20
JournalJournal of Low Temperature Physics
Volume77
Issue number5-6
DOIs
Publication statusPublished - 1 Dec 1989

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