期刊
SCIENCE
卷 302, 期 5646, 页码 846-849出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1089785
关键词
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Using high-resolution transmission electron microscopy, we obtained structure images of strontium titanate (SrTiO3) with a clearly resolved oxygen sublattice along different crystallographic directions in the bulk lattice and for a Sigma3 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.
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