17O hyperfine sublevel correlation spectroscopy was used to monitor the local environment of stable Ti3+ ions generated in a 17O-enriched polycrystalline TiO2 (rutile) sample (see picture). A hyperfine interaction of about 8 MHz is found, which is analogous to that observed for molecular Ti3+ aqua complex cations and suggests a localized nature of the unpaired electron wave function for these centers at 4 K.
Probing the Local Environment of Ti3+ Ions in TiO2 (Rutile) by 17O HYSCORE
LIVRAGHI, Stefano;MAURELLI, SARA;PAGANINI, Maria Cristina;CHIESA, Mario;GIAMELLO, Elio
2011-01-01
Abstract
17O hyperfine sublevel correlation spectroscopy was used to monitor the local environment of stable Ti3+ ions generated in a 17O-enriched polycrystalline TiO2 (rutile) sample (see picture). A hyperfine interaction of about 8 MHz is found, which is analogous to that observed for molecular Ti3+ aqua complex cations and suggests a localized nature of the unpaired electron wave function for these centers at 4 K.
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