Magnetic field suppression of 3He superfluidity in aerogel

D. T. Sprague, T. M. Haard, J. B. Kycia, M. R. Rand, Y. Lee, William P Halperin

Research output: Contribution to journalArticle

Abstract

We report nuclear magnetic resonance (NMR) measurements of superfluid 3He confined in 98% porosity aerogel.* 3He superfluidity in aerogel has been identified as an equal-spin pairing superfluid with a transition temperature, Te, suppressed from that of the bulk. In magnetic fields, 0.38 ≤ H ≤ 2.2 kOe, Tc is further suppressed by 61 ± 1 μK/kOe2 at 18.7 bar. Such a quadratic magnetic field dependence of the superfluid transition is unexpected for an equal-spin pairing state. The effects of small additions of 4He on the NMR frequency shifts and on the phase diagram are described.

Original languageEnglish (US)
Pages (from-to)119-120
Number of pages2
JournalCzechoslovak Journal of Physics
Volume46
Issue numberSUPPL. 1
DOIs
StatePublished - Dec 1 1996

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Sprague, D. T., Haard, T. M., Kycia, J. B., Rand, M. R., Lee, Y., & Halperin, W. P. (1996). Magnetic field suppression of 3He superfluidity in aerogel. Czechoslovak Journal of Physics, 46(SUPPL. 1), 119-120. https://doi.org/10.1007/BF02569475