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Multilayered Structures of SrNb0.1Ti0.9O3/La0.8Sr0.2MnO3/SrTiO3 Prepared by Laser Molecular Beam Epitaxy

Published online by Cambridge University Press:  31 January 2011

X. L. Ma ,
H. B. Lu ,
F. Chen ,
Z. H. Chen  and
G. Z. Yang
X. L. Ma*
Affiliation:
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Wenhua Road 72, 110016 Shenyang, P. R. China
H. B. Lu
Affiliation:
Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, 100080 Beijing, China
F. Chen
Affiliation:
Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, 100080 Beijing, China
Z. H. Chen
Affiliation:
Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, 100080 Beijing, China
G. Z. Yang
Affiliation:
Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, 100080 Beijing, China
*
a)Address all correspondence to this author. e-mail: xlma@imr.ac.cn
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Abstract

Multilayer oxides of SrNb0.1Ti0.9O3/La0.8Sr0.2MnO3/SrTiO3 have been grown by computer-controlled laser molecular beam epitaxy and characterized by transmission electron microscopy. Electron microdiffractions and high-resolution imaging reveal that the as-prepared thin film of La0.8Sr0.2MnO3 with thickness of 200 nm is epitaxially grown on the SrTiO3(001) substrate and the SrNb0.1Ti0.9O3 with thickness of 250 nm epitaxially on the as-received La0.8Sr0.2MnO3 film. The microstructures in the La0.8Sr0.2MnO3 film are clarified in terms of the oriented microdomains. In contrast, microstructures in SNTO are featured by the formation of superstructures due to charge ordering. Crystallographic relationships of these domains are discussed on the basis of an orthorhombic cell and rationalized by theoretical calculations based on a geometrical model.

Type
Articles
Information
Journal of Materials Research , Volume 17 , Issue 3 , March 2002 , pp. 600 - 608
Copyright
Copyright © Materials Research Society 2002

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