Home > Research > Publications & Outputs > Vortex Core Contribution to Textural Energy in ...

Associated organisational unit

Links

Text available via DOI:

View graph of relations

Vortex Core Contribution to Textural Energy in He-3-B Below 0.4T (c)

Research output: Contribution to journalJournal articlepeer-review

Published
Close
<mark>Journal publication date</mark>02/2011
<mark>Journal</mark>Journal of Low Temperature Physics
Issue number3-4
Volume162
Number of pages14
Pages (from-to)212-225
Publication StatusPublished
Early online date18/11/10
<mark>Original language</mark>English
EventInternational Symposium on Quantum Fluids and Solids (QFS) - Grenoble, France
Duration: 2/08/20107/08/2010

Conference

ConferenceInternational Symposium on Quantum Fluids and Solids (QFS)
CountryFrance
CityGrenoble
Period2/08/107/08/10

Abstract

Vortex lines affect the spatial order-parameter distribution in superfluid He-3-B owing to superflow circulating around vortex cores and due to the interaction of the order parameter in the core and in the bulk as a result of superfluid coherence over the whole volume. The step-like change of the latter contribution at 0.6T (c) (at a pressure of 29 bar) signifies the transition from axisymmetric cores at higher temperatures to broken-symmetry cores at lower temperatures. We extended earlier measurements of the core contribution to temperatures below 0.2T (c), in particular searching for a possible new core transition to lower symmetries. As a measuring tool we track the energy levels of magnon condensate states in a trap formed by the order-parameter texture.