A. Traverse et al., COPPER CLUSTERS MADE BY IMPLANTATION IN ALUMINUM NITRIDE, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 84(2), 1994, pp. 204-207
Copper has been implanted in AlN at 80 and 300 K with an average conce
ntration around 14%. X-ray absorption spectroscopy performed at the K
edge of Cu on as-implanted samples and on samples annealed at 800 degr
ees C for 1 and 5 h show that Cu precipitated in the host matrix even
for implantations performed at low temperature. Analysis of the spectr
a allows the average size of the clusters to be deduced. These crystal
line entities grow with dense planes of each phase parallel to each ot
her, as shown from previous transmission electron microscopy experimen
ts. The initial implantation fluence together with the subsequent anne
aling times and temperatures appear to be easy tools to monitor the cl
uster size.