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The dynamic texture of superfluid He-3-B at very low temperatures and in high magnetic fields.

Bradley, D. Ian and Fisher, Shaun N. and Guénault, A.M. and Haley, Richard P. and Martin, Hazel and Pickett, George R. (2005) The dynamic texture of superfluid He-3-B at very low temperatures and in high magnetic fields. Journal of Low Temperature Physics, 138 (3-4). pp. 583-588. ISSN 0022-2291

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Abstract

We report experiments using a pair of crossed vibrating Wire resonators (VWRs) in the B phase of superfluid He-3 in the zero temperature ballistic limit and in magnetic fields up to the B to A phase transition field of 340 mT. The VWRs are sensitive mechanical probes of energy gaps, textures and turbulent flow. In high magnetic fields the energy gap is no longer isotropic but significantly distorted, and the damping measured by the VWRs increases. With the crossed pair, we find that we can reduce the damping measured by one VWR when we increase the drive on the other one. We suggest that the reduction arises from the orientation of the surrounding texture by superflow and the screening of quasiparticles by the creation of superfluid turbulence.

Item Type: Article
Journal or Publication Title: Journal of Low Temperature Physics
Uncontrolled Keywords: A-B TRANSITION ; QUANTUM TURBULENCE
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 23490
Deposited By: Dr Richard P. Haley
Deposited On: 26 Jan 2009 09:59
Refereed?: Yes
Published?: Published
Last Modified: 17 Jul 2013 10:23
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/23490

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