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[001] Surface Structure inSrTiO3— Atomistic Study

Author

Listed:
  • Eugene Heifets

    (Institute of Chemical Physics, University of Latvia, Rainis Blvd. 19, Riga, LV-1586, Latvia)

  • Simon Dorfman

    (Institute of Chemical Physics, University of Latvia, Rainis Blvd. 19, Riga, LV-1586, Latvia;
    Department of Physics, Technion-Israel Institute of Technology, 32000 Haifa, Israel)

  • David Fuks

    (Institute of Chemical Physics, University of Latvia, Rainis Blvd. 19, Riga, LV-1586, Latvia;
    Materials Engineering Department, Ben-Gurion University of the Negev, POB 653, 84105 Beer Sheva, Israel)

  • Eugene Kotomin

    (Institute of Chemical Physics, University of Latvia, Rainis Blvd. 19, Riga, LV-1586, Latvia;
    Institute of Solid State Physics, University of Latvia, Kengaraga Str. 8, Riga, LV-1063, Latvia)

  • Alex Gordon

    (Institute of Chemical Physics, University of Latvia, Rainis Blvd. 19, Riga, LV-1586, Latvia;
    Department of Mathematics and Physics, Haifa University at Oranim, 36006 Tivon, Israel)

Abstract

Thin superconducting films attract great attention as a promising material for plenty of applications. The surface determines most of the physical properties of these films. We studied the polarization effect for the [001] surface of perovskiteABO3superconducting crystals on the example ofSrTiO3. Optimization of the ion positions in several surface layers is provided. These ions are placed in the external field of the rest crystal. The interaction between ions is described by means of the shell model technique. We show thatTi+4,Sr2+andO-2ions displace differently from their crystalline sites, which leads to the creation of a dipole moment in the near-surface region.

Suggested Citation

  • Eugene Heifets & Simon Dorfman & David Fuks & Eugene Kotomin & Alex Gordon, 1998. "[001] Surface Structure inSrTiO3— Atomistic Study," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 5(01), pages 341-345.
    • Handle: RePEc:wsi:srlxxx:v:05:y:1998:i:01:n:s0218625x98000633
    DOI: 10.1142/S0218625X98000633
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