Polar phase of superfluid 3He in anisotropic aerogel
V.V. Dmitriev, A.A. Senin, A.A. Soldatov, A.N. Yudin
TL;DR
This paper reports the discovery of a polar superfluid phase of helium-3 in anisotropic aerogel, aligning with theoretical predictions and suggesting similar phenomena could occur in other unconventional superconductors with anisotropic impurities.
Contribution
It provides the first experimental observation of the polar phase of superfluid 3He in a specially structured anisotropic aerogel, confirming theoretical models.
Findings
Observation of polar phase in anisotropic aerogel
Qualitative agreement with theoretical predictions
Implications for unconventional superconductors
Abstract
We report the observation of a new superfluid phase of 3He -- polar phase. This phase appears in 3He confined in a new type of aerogel with nearly parallel arrangement of strands which play a role of ordered impurities. Our observations qualitatively agree with theoretical predictions and suggest that in other systems with unconventional Cooper pairing (e.g. in unconventional superconductors) similar phenomena may be found in presence of anisotropic impurities.
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