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Heavy-ion irradiation of (0001) ZnO crystals results in unusual damage buildup, including an additional (intermediate) peak in damage-depth profiles measured by ion channeling, the formation of near-surface nanocavities, and stoichiometric imbalance. All these effects are thought to be associated with the influence of the sample surface on dynamic annealing processes. Here, by using ion channeling...
Lattice disorder in ZnO irradiated with heavy ions is anomalous, exhibiting an intermediate peak (IP) between the surface and bulk. Bombarding (0001) ZnO single crystals with 500keV Xe ions at two angles shows that the formation and propagation of the IP are independent of the displacement generation profile. The ZnO surface plays the dominant role in IP formation and propagation. The IP likely traps...
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