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A pumping experiment in dilute 3He-4He solutions at millikelvin temperatures

Fisher, SN and Guénault, A.M. and Jackson, DA and Pickett, George and Torizuka, K and Turner, RP (1995) A pumping experiment in dilute 3He-4He solutions at millikelvin temperatures. Journal of Low Temperature Physics, 100 (3-4). pp. 241-252. ISSN 0022-2291

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Abstract

Very dilute He-3-He-4 solutions provide a model system for the study of the effects of magnetic polarisation. It was proposed by the Lancaster group(1) that a ''pumping'' effect of He-3 should be observed under appropriate conditions in these solutions, In a strong magnetic field gradient, the He-3 should be pumped from the low field region towards the high field region, in which the He-3 is polarised We have now observed this effect in 0.1% and 0.06% solutions, using a vibrating wire resonator in the low field region as the concentration indicator. The concentration change of a few percent under our present experimental conditions (9 T maximum field, 10 mK) is of the expected magnitude so that development of the technique can now be considered.

Item Type: Article
Journal or Publication Title: Journal of Low Temperature Physics
Uncontrolled Keywords: MK ; VISCOSITY ; MAGNETIC-FIELD
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 65399
Deposited By: ep_importer_pure
Deposited On: 24 Jun 2013 15:07
Refereed?: Yes
Published?: Published
Last Modified: 30 Aug 2017 14:10
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/65399

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