title: Tuning the structure of ultrathin BaTiO3 films on Me(001) (Me=Fe, Pd, Pt) surfaces.
abstract: Using surface x-ray diffraction in combination with ab initio calculations, we demonstrate that the atomic structure of ultrathin BaTiO3 (BTO) films grown on Me(001) surfaces (Me=Fe, Pd, Pt) depends on subtle modifications of the interface chemical composition. A complete reversal of the surface termination from a BaO- [BTO on Fe(001)] to a TiO2-terminated film [BTO on Pt(001)] is observed which goes in parallel with the adsorption of submonolayer amounts of oxygen at metal hollow sites of the interface. Our results may suggest a new route to an overall control of both the surface and the interface geometry in BaTiO3/metal contacts.
authors.affiliation: Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany.
authors.forename: H L
authors.initials: HL
authors.lastname: Meyerheim
authors.affiliation: Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany and Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Linnéstraße 2, 04103 Leipzig, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Ernst
authors.affiliation: Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany.
authors.forename: K
authors.initials: K
authors.lastname: Mohseni
authors.affiliation: Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, D-06099 Halle, Germany.
authors.forename: I V
authors.initials: IV
authors.lastname: Maznichenko
authors.affiliation: Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, D-06099 Halle, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Henk
authors.affiliation: Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Ostanin
authors.affiliation: Institut des Nano Sciences de Paris, UPMC-Sorbonne Universités, CNRS-UMR7588, 75005 Paris, France.
authors.forename: N
authors.initials: N
authors.lastname: Jedrecy
authors.affiliation: Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany.
authors.forename: F
authors.initials: F
authors.lastname: Klimenta
authors.affiliation: ESRF, Boîte Postale 220, F-38043 Grenoble Cedex, France.
authors.forename: J
authors.initials: J
authors.lastname: Zegenhagen
authors.affiliation: ESRF, Boîte Postale 220, F-38043 Grenoble Cedex, France.
authors.forename: C
authors.initials: C
authors.lastname: Schlueter
authors.affiliation: Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany and Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, D-06099 Halle, Germany.
authors.forename: I
authors.initials: I
authors.lastname: Mertig
authors.affiliation: Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany and Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, D-06099 Halle, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Kirschner