Anisotropic phases of superfluid he 3 in compressed aerogel

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

doi:10.1103/PhysRevLett.114.105302

Anisotropic phases of superfluid he 3 in compressed aerogel

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

Physics and Astronomy

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11 Scopus citations

Abstract

It has been shown that the relative stabilities of various superfluid states of He3 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 He3 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.

Original language	English (US)
Article number	105302
Journal	Physical review letters
Volume	114
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.114.105302
State	Published - Mar 10 2015

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General Physics and Astronomy

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10.1103/PhysRevLett.114.105302

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abstract = "It has been shown that the relative stabilities of various superfluid states of He3 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 He3 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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AU - Halperin, W. P.

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AB - It has been shown that the relative stabilities of various superfluid states of He3 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 He3 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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Anisotropic phases of superfluid he 3 in compressed aerogel

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