A Vibrational Analysis of Au Implanted Al2O3 Single Crystals: Ion and Thermal Annealing Effects
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ABSTRACTThe implantation of Au into Al2O3 leads to disruption of the crystal order producing an amorphous layer. Annealing the implanted crystals at 1373 K restores the crystallinity and also imparts a purple color to the implanted layer which is attributed to a surface plasmon resulting from the formation of Au colloids.
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