Articles | Volume 4, issue 2
https://doi.org/10.5194/mr-4-199-2023
https://doi.org/10.5194/mr-4-199-2023
Research article
 | 
15 Aug 2023
Research article |  | 15 Aug 2023

Performance of the cross-polarization experiment in conditions of radiofrequency field inhomogeneity and slow to ultrafast magic angle spinning (MAS)

Andrej Šmelko, Jan Blahut, Bernd Reif, and Zdeněk Tošner

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Cited articles

Aebischer, K., Tošner, Z., and Ernst, M.: Effects of radial radio-frequency field inhomogeneity on MAS solid-state NMR experiments, Magn. Reson., 2, 523–543, https://doi.org/10.5194/mr-2-523-2021, 2021. 
Andrew, E. R., Bradbury, A., and Eades, R. G.: Nuclear Magnetic Resonance Spectra from a Crystal rotated at High Speed, Nature, 182, 1659–1659, https://doi.org/10.1038/1821659a0, 1958. 
Bak, M., Rasmussen, J. T., and Nielsen, N. C.: SIMPSON: A general simulation program for solid-state NMR spectroscopy, J. Magn. Reson., 147, 296–330, https://doi.org/10.1006/jmre.2000.2179, 2000. 
Baum, J., Tycko, R., and Pines, A.: Broadband and adiabatic inversion of a two-level system by phase-modulated pulses, Phys. Rev. A (Coll Park), 32, 3435–3447, https://doi.org/10.1103/PhysRevA.32.3435, 1985. 
Brinkmann, A.: Introduction to average Hamiltonian theory. I. Basics, Concep. Magn. Reson. A, 45A, e21414, https://doi.org/10.1002/cmr.a.21414, 2016. 
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Short summary
We present a tutorial on the cross-polarization experiment, which has been the main method of magnetization transfer in solid-state NMR for decades. We explain the principles of its volume-selective performance in the presence of magic angle spinning and radiofrequency field inhomogeneity and the decrease in efficiency with increasing sample rotation frequency.