Pake doublet

https://doi.org/10.1351/goldbook.08390
Characteristic line shape seen in solid-state nuclear magnetic resonance spectroscopy arising from dipolar coupling between two nuclei.
Source:
PAC, 2021, 93, 647. (Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)) on page 699 [Terms] [Paper]