Selective growth of perovskite oxides on SrTiO3 (001) by control of surface reconstructions

Soo-hyon Phark; Young Jun Chang; Tae Won Noh

doi:10.1063/1.3583443

Selective growth of perovskite oxides on SrTiO3 (001) by control of surface reconstructions

Materials Science 2011-04-25 v4 Mesoscale and Nanoscale Physics

Authors: Soo-hyon Phark , Young Jun Chang , Tae Won Noh

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Abstract

We report surface reconstruction (RC)-dependent growths of SrTiO3 and SrVO3 on a SrTiO3 (001) surface with two different coexisting surface RCs, namely (2x1) and c(6x2). Up to the coverage of several layers, epitaxial growth was forbidden on the c(6x2) RC under the growth conditions that permitted layer-by-layer epitaxial growth on the (2x1) RC. Scanning tunneling microscopy examination of the lattice structure of the c(6x2) RC revealed that this RC-selective growth mainly originated from the significant structural/stoichiometric dissimilarity between the c(6x2) RC and the cubic perovskite films. As a result, the formation of SrTiO3 islands was forbidden from the nucleation stage.

Keywords

perovskite oxides selective growth surface reconstruction SrTiO3 (001) epitaxial growth scanning tunneling microscopy

Cite

@article{arxiv.1007.2657,
  title  = {Selective growth of perovskite oxides on SrTiO3 (001) by control of surface reconstructions},
  author = {Soo-hyon Phark and Young Jun Chang and Tae Won Noh},
  journal= {arXiv preprint arXiv:1007.2657},
  year   = {2011}
}

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