Velocity Effect on Damage Creation in Ion-Irradiated CeO2

In various oxide materials, irradiation with high-energy heavy ions creates damage via electronic energy deposition. In the electronic energy loss regime, in most cases, the electronic stopping power, Se, is the parameter that dominates the damage creation. Some previous studies have shown that also the ion velocity affects the damage creation [1,2]. The ion velocity dependence is important because the velocity significantly influences the process that converts the deposited electronic energy into atomic displacements. This study is dedicated to the effect of the velocity on damage creation for CeO2 by irradiating high-energy ions having the same Se but different velocities.