NMR Time Reversal Experiments in Highly Polarised Liquid 3He-4He Mixtures
Emmanuel Baudin,
Michael E. Hayden,
Geneviève Tastevin
et al.
Abstract:Long-range magnetic interactions in highly magnetised liquids (laser-polarised 3 He-4 He 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 r… Show more
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