Abstract:Single crystals of Ca,,l..,as(SiO4)60_ " have been irradiated with different ions/energies in an in situ study of the effects of temperature and recoil-energy spectra on irradiation-induced amorphizatio,. The dose for compete amorphization increases with temperature in two stages. The low-temperature stage (below 250 Ix-'),. has an activation energy of 0.01 _.+ 0.003 eV and is believed to be associated with simultaneous close-pair recombination. The high-temperature stage (above 250 K) has an activation energy… Show more
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