NMR instabilities and spectral clustering in laser-polarized liquid xenon

Article

关键词: STEADY-STATE PRODUCTION;    NUCLEAR-POLARIZATION;    HE-3;    FIELD;   

DOI  :  10.1103/PhysRevB.63.184427

来源: SCIE

【 摘 要 】

To study how highly magnetized liquids behave in NMR experiments, we have performed low-field NMR on laser-polarized liquid Xe-129, 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.

【 授权许可】

Free