High-resolution transmission electron microscopy of heteroepitaxial barium strontium titanate films grown on MgO substrates

被引：0
|
作者：
O. M. Zhigalina
A. N. Kuskova
A. L. Chuvilin
V. M. Mukhortov
Yu. I. Golovko
U. Kaiser
R. V. Gaynutdinov
机构：
[1] Russian Academy of Sciences,Shubnikov Institute of Crystallography
[2] Russian Academy of Sciences,Southern Scientific Center
[3] University of Ulm,undefined
来源：
Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques | 2009年 / 3卷
关键词：
Surface Investigation; Neutron Technique; Geometric Phase; Substrate Interface; Barium Strontium Titanate;
D O I：
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学科分类号：
摘要：
Nanoscale (5–100 nm) ferroelectric heteroepitaxial Ba0.8Sr0.2TiO3 films on MgO(001) substrates were studied by methods of high-resolution transmission electron microscopy using Tecnai G2 and FEI Titan 80–300 microscopes. Misfit dislocations resulting from stress relaxation in films and insignificant local misorientation of film regions (block structure) were detected. The heterostructure was numerically simulated, which allowed the detection of the formation of oxygen (substrate)-titanium (film) bonds or the oxygen (substrate)-barium (film) bond at the film-substrate interface.
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页码：542 / 547
页数：5
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