Coherently precessing magnetization structure in normal 3He in pulsed NMR
Dmitriev V. V. , Zakazov S. R. , Moroz V. V.
Pulsed NMR experiments have been carried out in liquid 3He at temperatures below 10 mK. At sufficiently low temperatures, the duration of the induction signal is significantly longer than would be expected on the basis of the nonuniformity of the external magnetic field. Comparison of the experimental results with theory and numerical simulations indicates that the discrepancy stems from the formation of a coherently precessing, two-domain spin structure. The conditions required for the formation of such a structure are determined. © 1995 American Institute of Physics.