Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 50, Issue 20, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1361-6463/aa678c
Keywords
SrTiO3; TiO2; swift heavy ion; ion track; thermal spike; RBS/c; AFM
Categories
Funding
- Croatian Centre of Excellence
- Croatian Science Foundation [8127]
- European Community as an Integrating Activity 'Support of Public and Industrial Research Using Ion Beam Technology (SPIRIT)' under EC [227012]
- Industrial Research Using Ion Beam Technology (SPIRIT)' under EC [227012]
Ask authors/readers for more resources
Conditions for ion track formation in single crystal SrTiO3 and TiO2 (rutile) after irradiations using swift heavy ion beams with specific energies below 1 MeV/amu were investigated in this work. Rutherford backscattering spectroscopy in channeling was used to measure ion tracks in the bulk, while atomic force microscopy was used for observation of ion tracks on the surfaces. Variations in the ion track sizes and respective thresholds were observed after irradiations under random, channeling and near-channeling conditions close to normal incidence. These variations are attributed to the specifics of the electronic stopping power of swift heavy ions under the investigated conditions. In the case of ion channeling, electronic stopping power is reduced and observed ion tracks are smaller. The opposite was found under the near-channeling conditions when lowering of the ion track formation threshold was observed. We attribute this finding to the oscillating electronic stopping power with large peak values. For both materials, thresholds for bulk and surface ion track formation were found to be surprisingly close, around 10 keV nm(-1). Obtained results are compared with predictions of the analytical thermal spike model.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available