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

doi:10.1007/BF00682749

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

EE Faculty Management and Administration

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

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 language	English
Pages (from-to)	327-346
Number of pages	20
Journal	Journal of Low Temperature Physics
Volume	77
Issue number	5-6
DOIs	https://doi.org/10.1007/BF00682749 https://doi.org/10.1007/BF00682749
Publication status	Published - Dec 1989

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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%.",

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T1 - The effect of a strong magnetic field on the damping of second sound in dilute 3He-4He mixtures below 100 mK

AU - Owers-Bradley, John

AU - Main, P. C.

AU - Church, R. J.

AU - Hampson, T. M. M.

AU - McHale, Glen

AU - Bowley, Roger

PY - 1989/12

Y1 - 1989/12

N2 - 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%.

AB - 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%.

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JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

IS - 5-6

ER -

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

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