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HRTEM investigation of the epitaxial growth of scandate/titanate multilayers

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Abstract

Despite their potential application in strain-engineered layer structures, the epitaxial growth of rare earth scandate films on cubic perovskite substrates is not fully understood to date. Here we report on the epitaxy of the orthorhombic GdScO3 and DyScO3 on (001) BaTiO3 and SrTiO3 thin films. In particular, the orientation relationship between the orthorhombic epilayer and the cubic substrate is examined by aberration corrected high-resolution transmission electron microscopy. For all cases investigated, the long axis of the orthorhombic unit cell was found to be perpendicular to the growth direction.

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Acknowledgements

Fruitful discussions with L. Houben and C. L. Jia are gratefully acknowledged. We are thankful to D. Meertens for support with the specimen preparation. T.H. gratefully acknowledges financial support of the Deutsche Forschungsgemeinschaft, Graduiertenkolleg 549 ‘Noncentrosymetric Crystals’.

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Authors and Affiliations

  1. Institut für Festkörperforschung and Ernst Ruska-Centrum für Mikroskopie und Spektroskopie mit Elektronen, Forschungszentrum Jülich, 52425 , Jülich, Germany

    Markus Boese & Martina Luysberg

  2. Institut für Schichten und Grenzflächen, Forschungszentrum Jülich, 52425 , Jülich, Germany

    Tassilo Heeg & Jürgen Schubert

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  1. Markus Boese
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  2. Tassilo Heeg
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  3. Jürgen Schubert
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  4. Martina Luysberg
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Correspondence to Markus Boese.

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Boese, M., Heeg, T., Schubert, J. et al. HRTEM investigation of the epitaxial growth of scandate/titanate multilayers. J Mater Sci 41, 4434–4439 (2006). https://doi.org/10.1007/s10853-006-0083-y

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  • DOI: https://doi.org/10.1007/s10853-006-0083-y

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