Characteristic interactions of 111Cd probes with nonradioactive In impurities doped in ZnO

Local structures produced in 0.5 at.% In-doped ZnO were investigated by means of the time-differential perturbed angular correlation method using the 111Cd probe nuclei generated in the disintegration of different parents, 111In and 111mCd. From distinct perturbation patterns obtained with the probes descended from the different parents, it was ascertained that the doped In atoms locally form a unique structure dispersed in ZnO matrix without forming macroscopic agglomerates of their own.