Study of the electronic and atomic structure of thermally treated SrTiO3(110) surfaces

A. Gunhold; L. Beuermann; K. Gömann; G. Borchardt; V. Kempter; W. Maus-Friedrichs; S. Piskunov; E. A. Kotomin; S. Dorfman

doi:10.1002/sia.1638

Study of the electronic and atomic structure of thermally treated SrTiO₃(110) surfaces

A. Gunhold
, L. Beuermann
, K. Gömann
, G. Borchardt
, V. Kempter
, W. Maus-Friedrichs^*
, S. Piskunov
, E. A. Kotomin
, S. Dorfman

^*Corresponding author for this work

Laboratory of Kinetics in Self-Organizing Systems, Institute of Solid State Physics

Clausthal University of Technology
Osnabrück University
Max Planck Institute for Solid State Research
Technion-Israel Institute of Technology

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

25 Citations (Scopus)

Abstract

The electronic structure of heated SrTiO₃(110) surfaces was investigated with metastable impact electron spectroscopy and ultraviolet photoelectron spectroscopy (He(I). Scanning tunnelling microscopy and atomic force microscopy (AFM) were used to study the topology of the surface. The crystals were heated up to 1000 °C under reducing conditions in ultrahigh vacuum or under oxidizing conditions in synthetic air for 1 h, respectively. Under both conditions microfacetting of the surface is observed. The experimental results are compared with ab initio Hartree-Fock calculations, also presented here, carried out for both ideal and reconstructed SrTiO ₃(110) surfaces. The results give direct evidence for Ti termination of the faceted TiO₂ rows.

Original language	English
Pages (from-to)	998-1003
Number of pages	6
Journal	Surface and Interface Analysis
Volume	35
Issue number	12
DOIs	https://doi.org/10.1002/sia.1638
Publication status	Published - Dec 2003

Keywords

Ab initio calculations
AFM
Metastable impact electron spectroscopy (MIES)
STM
Strontium titanate
UPS

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10.1002/sia.1638

Cite this

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abstract = "The electronic structure of heated SrTiO3(110) surfaces was investigated with metastable impact electron spectroscopy and ultraviolet photoelectron spectroscopy (He(I). Scanning tunnelling microscopy and atomic force microscopy (AFM) were used to study the topology of the surface. The crystals were heated up to 1000 °C under reducing conditions in ultrahigh vacuum or under oxidizing conditions in synthetic air for 1 h, respectively. Under both conditions microfacetting of the surface is observed. The experimental results are compared with ab initio Hartree-Fock calculations, also presented here, carried out for both ideal and reconstructed SrTiO 3(110) surfaces. The results give direct evidence for Ti termination of the faceted TiO2 rows.",

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author = "A. Gunhold and L. Beuermann and K. G{\"o}mann and G. Borchardt and V. Kempter and W. Maus-Friedrichs and S. Piskunov and Kotomin, \{E. A.\} and S. Dorfman",

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TY - JOUR

T1 - Study of the electronic and atomic structure of thermally treated SrTiO3(110) surfaces

AU - Gunhold, A.

AU - Beuermann, L.

AU - Gömann, K.

AU - Borchardt, G.

AU - Kempter, V.

AU - Maus-Friedrichs, W.

AU - Piskunov, S.

AU - Kotomin, E. A.

AU - Dorfman, S.

PY - 2003/12

Y1 - 2003/12

N2 - The electronic structure of heated SrTiO3(110) surfaces was investigated with metastable impact electron spectroscopy and ultraviolet photoelectron spectroscopy (He(I). Scanning tunnelling microscopy and atomic force microscopy (AFM) were used to study the topology of the surface. The crystals were heated up to 1000 °C under reducing conditions in ultrahigh vacuum or under oxidizing conditions in synthetic air for 1 h, respectively. Under both conditions microfacetting of the surface is observed. The experimental results are compared with ab initio Hartree-Fock calculations, also presented here, carried out for both ideal and reconstructed SrTiO 3(110) surfaces. The results give direct evidence for Ti termination of the faceted TiO2 rows.

AB - The electronic structure of heated SrTiO3(110) surfaces was investigated with metastable impact electron spectroscopy and ultraviolet photoelectron spectroscopy (He(I). Scanning tunnelling microscopy and atomic force microscopy (AFM) were used to study the topology of the surface. The crystals were heated up to 1000 °C under reducing conditions in ultrahigh vacuum or under oxidizing conditions in synthetic air for 1 h, respectively. Under both conditions microfacetting of the surface is observed. The experimental results are compared with ab initio Hartree-Fock calculations, also presented here, carried out for both ideal and reconstructed SrTiO 3(110) surfaces. The results give direct evidence for Ti termination of the faceted TiO2 rows.

KW - Ab initio calculations

KW - AFM

KW - Metastable impact electron spectroscopy (MIES)

KW - STM

KW - Strontium titanate

KW - UPS

UR - https://www.scopus.com/pages/publications/0347655084

U2 - 10.1002/sia.1638

DO - 10.1002/sia.1638

M3 - Article

AN - SCOPUS:0347655084

SN - 0142-2421

VL - 35

SP - 998

EP - 1003

JO - Surface and Interface Analysis

JF - Surface and Interface Analysis

IS - 12

ER -

Study of the electronic and atomic structure of thermally treated SrTiO₃(110) surfaces

Abstract

Keywords

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