Abstract
Samples of yttrium iron garnet (Y 3Fe 5O 12 or YIG) were irradiated at 300 K with MeV C 60-ions at normal and tilted incidence. As observed by transmission electron microscopy, the cluster ions create amorphous and continuous tracks. Craters generated both at the entrance and exit surfaces of the samples are clearly visible at tilted incidence. Moreover, hillocks are seen at the entrance and exit of the tracks. On the sample surface matter ejected from the tracks has been deposited. Some of the tracks induced by high energy C 60-ions contain a “bubble-like structure” inside the amorphous part of the tracks, which appears only in very thin zones of the samples and when the projectiles exit from the sample. This is in contrast to the tracks created by smaller cluster ions and by GeV heavy ions for which no structure was seen.
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