Abstract
Samples based on the general composition Ca1-xLa2/3xTiO3 have been irradiated in-situ, at the IVEM-TANDEM facility, through the crystalline-amorphous transition with 1 MeV Kr ions, across a range of temperatures. The results suggest that there is a correlation between the availability of vacancies to aid recovery, with enhanced recovery at low values of x, with the lowest value for the critical temperature of amorphisation (Tc) being found between x = 0.2 and x = 0.3, to be ∼250 K. However, at higher values of x, vacancies are detrimental to rapid recovery, with an increase in Tc to over 700 K for x = 0.8. These changes are seemingly independent of the observed change in crystal symmetry, which has been previously found for these compositions.
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