$\mathit{Z}$ Oscillations in Ion-Induced Fullerene Fragmentation

Multiply charged ion-induced fragmentation and ionization of ${\mathrm{C}}_{60}$ is governed by electronic and nuclear stopping of the projectile as well as charge exchange. We have studied the collision dynamics as a function of the projectile atomic number $Z$ ( $2\le Z\le 18$) for constant projectile velocity $v$ at charge states $q=2,3\mathrm{}$. Strong oscillations of electronic-stopping–related quantities such as ionization and fragmentation are observed. From the properties of the oscillations, we obtain information on the effective electron density of the fullerene.