Ion implantation in titanium dioxide thin films studied by perturbed angular correlations
Schell, J. and Lupascu, D.C. and Carbonari, A.W. and Domingues Mansano, R. and Souza Ribeiro, I., Jr. and Dang, T.T. and Anusca, I. and Trivedi, H. and Johnston, K. and Vianden, R.
JOURNAL OF APPLIED PHYSICS
Volume: 121 Pages:
The local environment in titanium dioxide was studied by the time dependent perturbed γ-γ angular correlation of 111In/111Cd and 181Hf/181Ta at the Helmholtz-Institut für Strahlen-und Kernphysik, Bonn. An introduction to the implantation methodologies performed at the Bonn Radioisotope Separator is presented. The investigation was carried out on thin films, which were deposited by magnetic sputtering on Si. The results show two different sites for both probe nuclei with unique electric quadrupole interaction. Using 111Cd one of them has been attributed to the substitutional Ti at the rutile structure. For 181Ta, the spectra show the anatase phase, with a well-defined electric quadrupole frequency. © 2017 Author(s).