For 27Al nuclei in Al2O3 crystals, both nominally pure and doped with Cr3+, suppression of the impurity nuclear spin-lattice relaxation under the condition of additional stationary magnetic saturation of the NMR line has been observed for the first time. Measurements of the lattice and impurity components of the spin-lattice relaxation time have been performed. The study was carried out at 77 K for different crystal orientations. Possible mechanisms of the impurity NMR relaxation suppression are discussed.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.