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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2001

NMR instabilities and spectral clustering in laser-polarized liquid xenon

Résumé

To study how highly magnetized liquids behave in NMR experiments, we have performed low field NMR on laser-polarized liquid 129Xe, with nuclear polarization of up to 6%. Contrary to conventional NMR results, we find that instabilities develop after a large pulse, leading to an unexpectedly abrupt decay of the signal. In contrast, the NMR spectrum after a small pulse collapses to a series of unusually sharp lines (spectral clustering), whose widths correspond to precession lifetimes longer than a half minute. We discuss the key role of long-range dipolar coupling in such spin dynamics.
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Dates et versions

hal-00002995 , version 1 (03-10-2004)

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  • HAL Id : hal-00002995 , version 1

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Karen L. Sauer, François Marion, Pierre-Jean Nacher, Geneviève Tastevin. NMR instabilities and spectral clustering in laser-polarized liquid xenon. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2001, 63, pp.184427. ⟨hal-00002995⟩
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