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Contrasting mechanical anisotropies of the superfluid He-3 phases in aerogel.

Research output: Contribution to journalJournal article

Published
<mark>Journal publication date</mark>02/2007
<mark>Journal</mark>Physical Review Letters
Issue number7
Volume98
Number of pages0
Pages (from-to)075302
<mark>State</mark>Published
<mark>Original language</mark>English

Abstract

There has been much recent interest in how impurity scattering may affect the phases of the p-wave superfluid He-3. Impurities may be added to the otherwise absolutely pure superfluid by immersing it in aerogel. Some predictions suggest that impurity scattering may destroy orientational order and force all of the superfluid phases to have an isotropic superfluid density. In contrast to this, we present experimental data showing that the response of the A-like phase to superfluid flow is highly anisotropic, revealing a texture that is easily modified by flow.