Articles | Volume 2, issue 1
https://doi.org/10.5194/mr-2-523-2021
https://doi.org/10.5194/mr-2-523-2021
Research article
 | 
01 Jul 2021
Research article |  | 01 Jul 2021

Effects of radial radio-frequency field inhomogeneity on MAS solid-state NMR experiments

Kathrin Aebischer, Zdeněk Tošner, and Matthias Ernst

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Latest update: 21 Feb 2024
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Short summary
The radio-frequency (rf) field amplitude in solid-state NMR probes changes over the sample volume, i.e. different parts of the sample will experience different nutation frequencies. If the sample is rotated inside the coil as it is typical for magic angle spinning in solid-state NMR, such a position-dependent inhomogeneity leads to an additional time dependence of the rf field amplitude. We show that such time-dependent modulations do not play an important role in many experiments.