Frequency-chirped microwaves decouple electron- and 13C-spins in magic-angle spinning N@C60:C60 powder, improving DNP-enhanced 13C NMR signal intensity by 12% for 7 s polarization, and 5% for 30 s polarization. This electron decoupling demonstration is a step toward utilizing N@C60 as a controllable electron-spin source for magic-angle spinning magnetic resonance experiments.
N. Alaniva, E. P. Saliba, P. T. Judge, E. L. Sesti, W. Harneit, B. Corzilius and A. B. Barnes, Phys. Chem. Chem. Phys., 2023, 25, 5343 DOI: 10.1039/D2CP04516H
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