Direct Atom-Resolved Imaging of Oxides and Their Grain Boundaries
- 31 October 2003
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 302 (5646) , 846-849
- https://doi.org/10.1126/science.1089785
Abstract
Using high-resolution transmission electron microscopy, we obtained structure images of strontium titanate (SrTiO 3 ) with a clearly resolved oxygen sublattice along different crystallographic directions in the bulklattice and for a Σ3 tilt grain boundary. Comparison with image simulations showed that the grain boundary contains oxygen vacancies. Measurements of atom displacements near the grain boundary revealed close correspondence with theoretical calculations.Keywords
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