Point defects at cleaved Srn+1Run O3n+1 (001) surfaces

Bernhard Stöger, Marcel Hieckel, Florian Mittendorfer, Zhiming Wang, Michael Schmid, Gareth S. Parkinson, David Fobes, Jin Peng, John E. Ortmann, Andreas Limbeck, Zhiqiang Mao, Josef Redinger, Ulrike Diebold

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The (001) surfaces of cleaved Sr3Ru2O7 and Sr2RuO4 samples were investigated using low-temperature scanning tunneling microscopy and density functional theory calculations. Intrinsic defects are not created during cleaving. This experimental observation is consistent with calculations, where the formation energy for a Sr and O vacancy, 4.19 eV and 3.81 eV, respectively, is significantly larger than that required to cleave the crystal, 1.11 eV/(1 × 1) unit cell. Surface oxygen vacancies can be created through electron bombardment, however, and their appearance is shown to vary strongly with the imaging conditions. Point defects observed on as-cleaved surfaces result from bulk impurities and adsorption from the residual gas.

Original languageEnglish (US)
Article number165438
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume90
Issue number16
DOIs
StatePublished - Oct 30 2014

Fingerprint

Point defects
point defects
electron bombardment
residual gas
Scanning tunneling microscopy
energy of formation
Oxygen vacancies
Vacancies
Density functional theory
scanning tunneling microscopy
Gases
Impurities
density functional theory
Imaging techniques
Adsorption
impurities
Defects
Crystals
adsorption
Electrons

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Stöger, B., Hieckel, M., Mittendorfer, F., Wang, Z., Schmid, M., Parkinson, G. S., ... Diebold, U. (2014). Point defects at cleaved Srn+1Run O3n+1 (001) surfaces. Physical Review B - Condensed Matter and Materials Physics, 90(16), [165438]. https://doi.org/10.1103/PhysRevB.90.165438
Stöger, Bernhard ; Hieckel, Marcel ; Mittendorfer, Florian ; Wang, Zhiming ; Schmid, Michael ; Parkinson, Gareth S. ; Fobes, David ; Peng, Jin ; Ortmann, John E. ; Limbeck, Andreas ; Mao, Zhiqiang ; Redinger, Josef ; Diebold, Ulrike. / Point defects at cleaved Srn+1Run O3n+1 (001) surfaces. In: Physical Review B - Condensed Matter and Materials Physics. 2014 ; Vol. 90, No. 16.
@article{2df68e980f8e41ce9106998d2b7e8222,
title = "Point defects at cleaved Srn+1Run O3n+1 (001) surfaces",
abstract = "The (001) surfaces of cleaved Sr3Ru2O7 and Sr2RuO4 samples were investigated using low-temperature scanning tunneling microscopy and density functional theory calculations. Intrinsic defects are not created during cleaving. This experimental observation is consistent with calculations, where the formation energy for a Sr and O vacancy, 4.19 eV and 3.81 eV, respectively, is significantly larger than that required to cleave the crystal, 1.11 eV/(1 × 1) unit cell. Surface oxygen vacancies can be created through electron bombardment, however, and their appearance is shown to vary strongly with the imaging conditions. Point defects observed on as-cleaved surfaces result from bulk impurities and adsorption from the residual gas.",
author = "Bernhard St{\"o}ger and Marcel Hieckel and Florian Mittendorfer and Zhiming Wang and Michael Schmid and Parkinson, {Gareth S.} and David Fobes and Jin Peng and Ortmann, {John E.} and Andreas Limbeck and Zhiqiang Mao and Josef Redinger and Ulrike Diebold",
year = "2014",
month = "10",
day = "30",
doi = "10.1103/PhysRevB.90.165438",
language = "English (US)",
volume = "90",
journal = "Physical Review B-Condensed Matter",
issn = "1098-0121",
publisher = "American Physical Society",
number = "16",

}

Stöger, B, Hieckel, M, Mittendorfer, F, Wang, Z, Schmid, M, Parkinson, GS, Fobes, D, Peng, J, Ortmann, JE, Limbeck, A, Mao, Z, Redinger, J & Diebold, U 2014, 'Point defects at cleaved Srn+1Run O3n+1 (001) surfaces', Physical Review B - Condensed Matter and Materials Physics, vol. 90, no. 16, 165438. https://doi.org/10.1103/PhysRevB.90.165438

Point defects at cleaved Srn+1Run O3n+1 (001) surfaces. / Stöger, Bernhard; Hieckel, Marcel; Mittendorfer, Florian; Wang, Zhiming; Schmid, Michael; Parkinson, Gareth S.; Fobes, David; Peng, Jin; Ortmann, John E.; Limbeck, Andreas; Mao, Zhiqiang; Redinger, Josef; Diebold, Ulrike.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 90, No. 16, 165438, 30.10.2014.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Point defects at cleaved Srn+1Run O3n+1 (001) surfaces

AU - Stöger, Bernhard

AU - Hieckel, Marcel

AU - Mittendorfer, Florian

AU - Wang, Zhiming

AU - Schmid, Michael

AU - Parkinson, Gareth S.

AU - Fobes, David

AU - Peng, Jin

AU - Ortmann, John E.

AU - Limbeck, Andreas

AU - Mao, Zhiqiang

AU - Redinger, Josef

AU - Diebold, Ulrike

PY - 2014/10/30

Y1 - 2014/10/30

N2 - The (001) surfaces of cleaved Sr3Ru2O7 and Sr2RuO4 samples were investigated using low-temperature scanning tunneling microscopy and density functional theory calculations. Intrinsic defects are not created during cleaving. This experimental observation is consistent with calculations, where the formation energy for a Sr and O vacancy, 4.19 eV and 3.81 eV, respectively, is significantly larger than that required to cleave the crystal, 1.11 eV/(1 × 1) unit cell. Surface oxygen vacancies can be created through electron bombardment, however, and their appearance is shown to vary strongly with the imaging conditions. Point defects observed on as-cleaved surfaces result from bulk impurities and adsorption from the residual gas.

AB - The (001) surfaces of cleaved Sr3Ru2O7 and Sr2RuO4 samples were investigated using low-temperature scanning tunneling microscopy and density functional theory calculations. Intrinsic defects are not created during cleaving. This experimental observation is consistent with calculations, where the formation energy for a Sr and O vacancy, 4.19 eV and 3.81 eV, respectively, is significantly larger than that required to cleave the crystal, 1.11 eV/(1 × 1) unit cell. Surface oxygen vacancies can be created through electron bombardment, however, and their appearance is shown to vary strongly with the imaging conditions. Point defects observed on as-cleaved surfaces result from bulk impurities and adsorption from the residual gas.

UR - http://www.scopus.com/inward/record.url?scp=84912008184&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84912008184&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.90.165438

DO - 10.1103/PhysRevB.90.165438

M3 - Article

AN - SCOPUS:84912008184

VL - 90

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 16

M1 - 165438

ER -

Stöger B, Hieckel M, Mittendorfer F, Wang Z, Schmid M, Parkinson GS et al. Point defects at cleaved Srn+1Run O3n+1 (001) surfaces. Physical Review B - Condensed Matter and Materials Physics. 2014 Oct 30;90(16). 165438. https://doi.org/10.1103/PhysRevB.90.165438