We report the first observation of transient nutations, spin echoes and stimulated echoes associated with two-quantum transition between levels for which single-quantum transition is forbidden. The experiment was made on a multi-level NMR system, 27 Al in Al 2 O 3 with its c -axis parallel to the static magnetic field H 0 , where level spacings were unequal and no state mixing existed. To detect the coherence between levels with Δ m =2 the technique of transfer of coherence was used. The equation of motion of the spins was simpler than that usually used in a three-level system.
No takes yet. Share an insight, caveat, or question.
Hatanaka et al. (1975) studied this question.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: