Pressure dependence of the longitudinal resonance frequency of 3He superfluid phases in aerogel

J. I.A. Li*, J. Pollanen, C. A. Collett, W. J. Gannon, W. P. Halperin

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

Abstract

Pulsed NMR measurements have been performed on superfluid 3He within a 98% porosity aerogel over a pressure range of 8 to 26 bar. The aerogel sample is homogeneous and isotropic as indicated by in situ optical birefringence and, on similarly prepared samples, using SAXS characterization [1]. Two different superfluid phases are observed at low temperature. The two phases are identified as the same as the A and B-phases in pure 3He, from tip angle measurement and the NMR equations of Leggett [2]. The pressure and temperature dependence of the longitudinal resonance frequency of each phase is reported in this article.

Original languageEnglish (US)
Article number012039
JournalJournal of Physics: Conference Series
Volume400
Issue numberPART 1
DOIs
StatePublished - 2012
Event26th International Conference on Low Temperature Physics, LT 2011 - Beijing, China
Duration: Aug 10 2011Aug 17 2011

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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