SrTiO3(0 0 1) surface structures under oxidizing conditions

N. Erdman; L. D. Marks

doi:10.1016/S0039-6028(02)02573-6

SrTiO₃(0 0 1) surface structures under oxidizing conditions

N. Erdman^*, L. D. Marks

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

58 Scopus citations

Abstract

The thermodynamically stable (2 × 1), c(4 × 2) and c(6 × 2) surface structures were obtained under oxidative conditions on the SrTiO₃(0 0 1) surface and studied with transmission electron microscopy. All three reconstructed surfaces exhibit similar morphological features - formation of flat 〈1 0 0〉 facets on the surface, stabilization of 〈1 1 0〉 originally polar facets as well as the existence of surface defects in a form of subsurface voids. The consistency and high reproducibility of our results suggest construction of a phase diagram for the formation of different structures on the SrTiO₃(0 0 1) surface as a function of annealing temperature.

Original language	English (US)
Pages (from-to)	107-114
Number of pages	8
Journal	Surface Science
Volume	526
Issue number	1-2
DOIs	https://doi.org/10.1016/S0039-6028(02)02573-6
State	Published - Feb 20 2003

Funding

This work was supported by the EMSI program of the National Science Foundation and the US Department of Energy Office of Science (CHE-9810378) at the Northwestern University Institute for Environmental Catalysis. HREM analysis was carried out at the Electron Microscopy Collaborative Research Center at Argonne National Laboratory.

Keywords

Faceting
Single crystal surfaces
Surface defects
Surface relaxation and reconstruction
Surface structure, morphology, roughness, and topography

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

Access to Document

10.1016/S0039-6028(02)02573-6

Cite this

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title = "SrTiO3(0 0 1) surface structures under oxidizing conditions",

abstract = "The thermodynamically stable (2 × 1), c(4 × 2) and c(6 × 2) surface structures were obtained under oxidative conditions on the SrTiO3(0 0 1) surface and studied with transmission electron microscopy. All three reconstructed surfaces exhibit similar morphological features - formation of flat 〈1 0 0〉 facets on the surface, stabilization of 〈1 1 0〉 originally polar facets as well as the existence of surface defects in a form of subsurface voids. The consistency and high reproducibility of our results suggest construction of a phase diagram for the formation of different structures on the SrTiO3(0 0 1) surface as a function of annealing temperature.",

keywords = "Faceting, Single crystal surfaces, Surface defects, Surface relaxation and reconstruction, Surface structure, morphology, roughness, and topography",

author = "N. Erdman and Marks, \{L. D.\}",

note = "Funding Information: This work was supported by the EMSI program of the National Science Foundation and the US Department of Energy Office of Science (CHE-9810378) at the Northwestern University Institute for Environmental Catalysis. HREM analysis was carried out at the Electron Microscopy Collaborative Research Center at Argonne National Laboratory. ",

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T1 - SrTiO3(0 0 1) surface structures under oxidizing conditions

AU - Erdman, N.

AU - Marks, L. D.

N1 - Funding Information: This work was supported by the EMSI program of the National Science Foundation and the US Department of Energy Office of Science (CHE-9810378) at the Northwestern University Institute for Environmental Catalysis. HREM analysis was carried out at the Electron Microscopy Collaborative Research Center at Argonne National Laboratory.

PY - 2003/2/20

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N2 - The thermodynamically stable (2 × 1), c(4 × 2) and c(6 × 2) surface structures were obtained under oxidative conditions on the SrTiO3(0 0 1) surface and studied with transmission electron microscopy. All three reconstructed surfaces exhibit similar morphological features - formation of flat 〈1 0 0〉 facets on the surface, stabilization of 〈1 1 0〉 originally polar facets as well as the existence of surface defects in a form of subsurface voids. The consistency and high reproducibility of our results suggest construction of a phase diagram for the formation of different structures on the SrTiO3(0 0 1) surface as a function of annealing temperature.

AB - The thermodynamically stable (2 × 1), c(4 × 2) and c(6 × 2) surface structures were obtained under oxidative conditions on the SrTiO3(0 0 1) surface and studied with transmission electron microscopy. All three reconstructed surfaces exhibit similar morphological features - formation of flat 〈1 0 0〉 facets on the surface, stabilization of 〈1 1 0〉 originally polar facets as well as the existence of surface defects in a form of subsurface voids. The consistency and high reproducibility of our results suggest construction of a phase diagram for the formation of different structures on the SrTiO3(0 0 1) surface as a function of annealing temperature.

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KW - Surface structure, morphology, roughness, and topography

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