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Heterostructures of La0.67Sr0.33MnO3/SrTiO3/La0.67Sr0.33MnO3 grown by pulsed laser deposition on (001) SrTiO3

✍ Scribed by R. Lyonnet; J.-L. Maurice; M.J. Hÿtch; D. Michel; J.-P. Contour

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
577 KB
Volume
162-163
Category
Article
ISSN
0169-4332

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✦ Synopsis

We have prepared by pulsed laser deposition La Sr MnO LSMO rSrTiO STO rLSMO tunnel junctions 0.67 0.33 3 3 Ž . Ž . epitaxially grown on 001 STO. LSMO is rhombohedral in bulk pseudo cubic with an angle of 89.748 ; its epitaxy on STO Ž . Ž . Ž raises two kinds of questions: 1 are the interfaces chemically abrupt? 2 How is the geometrical mismatch rhombohedron . on cube accommodated? We have investigated these issues using cross-sectional high-resolution transmission electron Ž . microscopy HRTEM . We have shown previously that interdiffusion was absent, and that interfacial roughness was w Ž .

x restricted to single unit cell steps

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