15th International Conference on Muon Spin Rotation, Relaxation and Resonance

Cross-polarization techniques provide a rich playground which allows NMR practitioners a large variety of tools to extract detailed spin-hamiltonian parameters of inhomogeneous systems. Beta-detected NMR is almost an ideal arena, i.e. one spin-polarized 8Li residing in a local structure, for which to apply such multi-resonant pulse sequences.
As such, an adaptation of NMR's BRAIN-CP RF pulse sequence is described which can in principle extract the dipolar and/or quadrupolar spin parameters of the 8Li near neighbours. The polarization transfer is achieved in a specifically tuned "double" rotating frame during an adiabatic inversion of the 8Li spin, and is detected as loss or fine structure in the monitored 8Li z-polarization.