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arXiv · 1501.03384

Anisotropic phases of superfluid 3He in compressed aerogel

J. I. A. Li·A. M. Zimmerman·J. Pollanen·C. A. Collett·W. P. Halperin
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Abstract

It has been shown that the relative stabilities of various superfluid states of 3He can be influenced by anisotropy in a silica aerogel framework. We prepared a suite of aerogel samples compressed up to 30% for which we performed pulsed NMR on 3He imbibed within the aerogel. We identified A and B-phases and determined their magnetic field-temperature phase diagrams as a function of strain. From these results we infer that the B-phase is distorted by negative strain forming an anisotropic superfluid state more stable than the A-phase.

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J. I. A. Li, A. M. Zimmerman, J. Pollanen, C. A. Collett, W. P. Halperin. 2015-01-10. Anisotropic phases of superfluid 3He in compressed aerogel. https://doi.org/10.1103/physrevlett.114.105302

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