Abstract
Samples of yttrium iron garnet (Y3Fe5O12 or YIG) were irradiated with Au4, Cn (2⩽n⩽20), C60 ions in the MeV energy range. Using transmission electron microscopy (TEM) and Rutherford backscattering spectrometry (RBS), the induced latent tracks are compared with those generated with GeV mono-atomic ions. The cluster ions create amorphous and continuous tracks as in the mono-atomic case. Irradiation at grazing incidence allows to visualise the dissociation of cluster ions inside a solid. Some of the tracks induced by high energy C60 ions contain a “bubble-like” structure inside the amorphous part of the tracks, which is in contrast to the tracks induced by smaller cluster and GeV mono-atomic ions for which no structure is seen. The diameters of the tracks induced by MeV cluster ions and by the low velocity mono-atomic ions are seen to follow the same curve as a function of the linear rate of energy deposition (dE/dx)e.
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