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

Soo Hyon Phark, Young Jun Chang, Tae Won Noh

Department of Physics

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23 Scopus citations

Abstract

We report surface reconstruction (RC)-dependent growths of SrTiO ₃ and SrVO₃ on a SrTiO₃ (001) surface with two different coexisting surface RCs, namely, (2×1) and c (6×2). Up to the coverage of several layers, epitaxial growth was forbidden on the c (6×2) RC under the growth conditions that permitted layer-by-layer epitaxial growth on the (2×1) RC. Scanning tunneling microscopy on the lattice structure of the c (6×2) RC revealed that this RC-selective growth mainly originated from the significant structural/stoichiometric dissimilarity between the c (6×2) RC and the cubic perovskite films. On the c (6×2) RC, therefore, formation of perovskite islands was forbidden from the nucleation stage.

Original language	English
Article number	161908
Journal	Applied Physics Letters
Volume	98
Issue number	16
DOIs	https://doi.org/10.1063/1.3583443
State	Published - 18 Apr 2011

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abstract = "We report surface reconstruction (RC)-dependent growths of SrTiO 3 and SrVO3 on a SrTiO3 (001) surface with two different coexisting surface RCs, namely, (2×1) and c (6×2). Up to the coverage of several layers, epitaxial growth was forbidden on the c (6×2) RC under the growth conditions that permitted layer-by-layer epitaxial growth on the (2×1) RC. Scanning tunneling microscopy on the lattice structure of the c (6×2) RC revealed that this RC-selective growth mainly originated from the significant structural/stoichiometric dissimilarity between the c (6×2) RC and the cubic perovskite films. On the c (6×2) RC, therefore, formation of perovskite islands was forbidden from the nucleation stage.",

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AU - Phark, Soo Hyon

AU - Chang, Young Jun

AU - Won Noh, Tae

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N2 - We report surface reconstruction (RC)-dependent growths of SrTiO 3 and SrVO3 on a SrTiO3 (001) surface with two different coexisting surface RCs, namely, (2×1) and c (6×2). Up to the coverage of several layers, epitaxial growth was forbidden on the c (6×2) RC under the growth conditions that permitted layer-by-layer epitaxial growth on the (2×1) RC. Scanning tunneling microscopy on the lattice structure of the c (6×2) RC revealed that this RC-selective growth mainly originated from the significant structural/stoichiometric dissimilarity between the c (6×2) RC and the cubic perovskite films. On the c (6×2) RC, therefore, formation of perovskite islands was forbidden from the nucleation stage.

AB - We report surface reconstruction (RC)-dependent growths of SrTiO 3 and SrVO3 on a SrTiO3 (001) surface with two different coexisting surface RCs, namely, (2×1) and c (6×2). Up to the coverage of several layers, epitaxial growth was forbidden on the c (6×2) RC under the growth conditions that permitted layer-by-layer epitaxial growth on the (2×1) RC. Scanning tunneling microscopy on the lattice structure of the c (6×2) RC revealed that this RC-selective growth mainly originated from the significant structural/stoichiometric dissimilarity between the c (6×2) RC and the cubic perovskite films. On the c (6×2) RC, therefore, formation of perovskite islands was forbidden from the nucleation stage.

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

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