Abstract
The Ti3+ center, based on a regular Ti site perturbed by an oxygen vacancy (VO), is identified by electron spin resonance (ESR) in textured BaTiO3 films. The center shows tetragonal symmetry along cubic ⟨100⟩ axes with g-factors: g‖=1.997, g⊥=1.904. The spectrum of this defect disappeared after the film annealing at 700°C in an O2 atmosphere. We describe the observed spectrum as Ti3+–VO couple defects or F+ center, which have never been observed in bulk BaTiO3. ESR is thus a unique tool to identify oxygen-vacancy-related defects, which have a large effect on the performance of ferroelectric films.
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Dates
Type | When |
---|---|
Created | 20 years, 2 months ago (July 6, 2005, 8:33 p.m.) |
Deposited | 2 years, 2 months ago (July 2, 2023, 9:05 p.m.) |
Indexed | 1 month, 1 week ago (July 30, 2025, 6:45 a.m.) |
Issued | 20 years, 2 months ago (July 7, 2005) |
Published | 20 years, 2 months ago (July 7, 2005) |
Published Online | 20 years, 2 months ago (July 7, 2005) |
Published Print | 20 years, 1 month ago (July 11, 2005) |
@article{Laguta_2005, title={Electron spin resonance investigation of oxygen-vacancy-related defects in BaTiO3 thin films}, volume={87}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.1954900}, DOI={10.1063/1.1954900}, number={2}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Laguta, V. V. and Slipenyuk, A. M. and Bykov, I. P. and Glinchuk, M. D. and Maglione, M. and Michau, D. and Rosa, J. and Jastrabik, L.}, year={2005}, month=jul }