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Journal of Low Temperature Physics

, Volume 150, Issue 3–4, pp 168–173 | Cite as

NMR Time Reversal Experiments in Highly Polarised Liquid 3He-4He Mixtures

  • Emmanuel BaudinEmail author
  • Michael E. Hayden
  • Geneviève Tastevin
  • Pierre-Jean Nacher
Article

Abstract

Long-range magnetic interactions in highly magnetised liquids (laser-polarised 3He-4He dilute mixtures at 1 K in our experiment) introduce a significant non-linear and non-local contribution to the evolution of nuclear magnetisation that leads to instabilities during free precession. We recently demonstrated that a multi-echo NMR sequence, based on the magic sandwich pulse scheme developed for solid-state NMR, can be used to stabilise the magnetisation against the effect of distant dipolar fields. Here, we report investigations of echo attenuation in an applied field gradient that show the potential of this NMR sequence for spin diffusion measurements at high magnetisation densities.

Keywords

3He-4He mixtures Nonlinear dynamics Nuclear magnetism 

PACS

76.60.Jx 76.60.Lz 82.56-b 82.56.Jn 67.65+z 75.40-Gb 

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Emmanuel Baudin
    • 1
    Email author
  • Michael E. Hayden
    • 2
  • Geneviève Tastevin
    • 1
  • Pierre-Jean Nacher
    • 1
  1. 1.Laboratoire Kastler BrosselEcole Normale Supérieure, CNRS, UPMCParisFrance
  2. 2.Physics Dept.Simon Fraser UniversityBurnabyCanada

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