@article{33456,
  author = {A.Y Borisevich and A.R Lupini and J He and E.A Eliseev and A.N Morozovska and G.S Svechnikov and P Yu and Y.-H Chu and Ramamoorthy Ramesh and S.T Pantelides and S.V Kalinin and S.J Pennycook},
  title = {Interface dipole between two metallic oxides caused by localized oxygen vacancies},
  abstract = {Oxygen vacancies are increasingly recognized to play a role in phenomena observed at transition-metal oxide interfaces. Here, we report a study of SrRuO 3 and La 0.7Sr 0.3MnO 3 interfaces using a combination of quantitative aberration-corrected scanning transmission electron microscopy, electron energy-loss spectroscopy, and density functional calculations. Cation displacements are observed at the interface, indicative of a dipolelike electric field even though both materials are nominally metallic. The observed displacements are reproduced by theory if O vacancies are present in the near-interface La 0.7Sr 0.3MnO 3 layers. The results suggest that atomic-scale structural mapping can serve as a quantitative indicator of the presence of O vacancies at interfaces. © 2012 American Physical Society.},
  year = {2012},
  journal = {Physical Review B - Condensed Matter and Materials Physics},
  volume = {86},
  number = {14},
  issn = {10980121},
  doi = {10.1103/PhysRevB.86.140102},
  note = {cited By 38},
  language = {eng},
}