Identification of A- and B-site cation vacancy defects in perovskite oxide thin films.

Abstract

Cation vacancies on both sublattices (V(Ti), V(Sr)) have been identified in homoepitaxial pulsed laser deposited SrTiO3 films using high intensity variable energy positron annihilation lifetime spectroscopy (PALS) measurements. Film nonstoichiometry was varied by varying laser fluence. PALS showed that on increasing the fluence above the Ti/Sr∼1 value, the… (More)

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@article{Keeble2010IdentificationOA, title={Identification of A- and B-site cation vacancy defects in perovskite oxide thin films.}, author={D J Keeble and Sebastian Wicklein and Ralf Dittmann and Luca Ravelli and Ryan Mackie and Winfried Egger}, journal={Physical review letters}, year={2010}, volume={105 22}, pages={226102} }