Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
<mark>Journal publication date</mark> | 02/2011 |
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<mark>Journal</mark> | Journal of Low Temperature Physics |
Issue number | 3-4 |
Volume | 162 |
Number of pages | 14 |
Pages (from-to) | 212-225 |
Publication Status | Published |
Early online date | 18/11/10 |
<mark>Original language</mark> | English |
Event | International Symposium on Quantum Fluids and Solids (QFS) - Grenoble, France Duration: 2/08/2010 → 7/08/2010 |
Conference | International Symposium on Quantum Fluids and Solids (QFS) |
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Country/Territory | France |
City | Grenoble |
Period | 2/08/10 → 7/08/10 |
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.