Pulsed
radiofrequency signal in
NMR that rotates the bulk magnetization vector (
\(\boldsymbol{M}_{0}\)) of a nuclear spin to its opposing direction, effectively inverting the signal, (e.g., from the
\(+z\) to
\(-z\) axis).
Source:
PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 681 (https://doi.org/10.1515/pac-2019-0203)