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

^*Šī darba korespondējošais autors

Pašorganizēto sistēmu kinētikas laboratorija, Cietvielu fizikas institūts

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

Zinātniskās darbības rezultāts: Devums žurnālam › Zinātniskais raksts (žurnālā) › koleģiāli recenzēts

25 Atsauces (Scopus)

Kopsavilkums

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.

Oriģinālvaloda	Angļu
Lapas (no-līdz)	998-1003
Lapu skaits	6
Žurnāls	Surface and Interface Analysis
Sējums	35
Izdevuma numurs	12
DOIs	https://doi.org/10.1002/sia.1638
Publikācijas statuss	Publicēts - dec. 2003

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10.1002/sia.1638

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title = "Study of the electronic and atomic structure of thermally treated SrTiO3(110) surfaces",

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.",

keywords = "Ab initio calculations, AFM, Metastable impact electron spectroscopy (MIES), STM, Strontium titanate, UPS",

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",

year = "2003",

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doi = "10.1002/sia.1638",

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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

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DO - 10.1002/sia.1638

M3 - Article

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SN - 0142-2421

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JO - Surface and Interface Analysis

JF - Surface and Interface Analysis

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ER -