CEMS study of high temperature annealed ion-implanted garnets

Single crystal garnet films of composition (YSmCaLu)
3
(FeGe)
5
O
12
were implanted with 100 keV Ne+ ions with doses of 2×10
¹⁴
Ne+/cm
²
and 6×10
¹⁴
Ne+/cm
²
. After annealing at temperatures from 600 to 1000°C, the films were investigated by conversion electron Mössbauer spectroseopy (CEMS) at room temperature. It is shown that effects of ion implantation can be recovered completely by annealing at 1000°C. The average activation energies were estimated from changes in the hyperfine field after annealing.