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Anisotropic suppression of octahedral breathing distortion with the fully strained BaBiO3/BaCeO3 heterointerface

Title
Anisotropic suppression of octahedral breathing distortion with the fully strained BaBiO3/BaCeO3 heterointerface
Authors
Lee, Han GyeolKim, Ro KyeonKim, Jin KwonKim, Mi NuKim, Tae HeonLee, Shin BuhmNoh, Tae Won
DGIST Authors
Lee, Shin Buhm
Issue Date
2018-01
Citation
APL Materials, 6(1)
Type
Article
Article Type
Article
Keywords
Bismuth compoundsCalculationsCerium compoundsEpitaxial filmsOxide filmsPerovskite solar cellsThin filmsDisplacement modesFirst-principles calculationHetero interfacesOctahedral tiltingOptical spectroscopyPerovskite oxide thin filmsPhysiochemical effectsUnit cellsBarium compounds
ISSN
2166-532X
Abstract
While the physiochemical effects of octahedral tilting and rotating distortions have been studied extensively, octahedral breathing distortion (OBD) at heterointerfaces has rarely been explored. Here, we investigated OBD in fully strained BaBiO3 (BBO) epitaxial films by making a new type of oxide heterointerface with non-breathing BaCeO3 epitaxial films. The integration of first-principles calculations with experimental observations of optical spectroscopy revealed that the oxygen displacement modes in BBO became disordered within six unit cells at the heterointerface and the surface. Controlling OBD in perovskite oxide thin films provides a means to exploit emerging material properties. © 2018 Author(s).
URI
http://hdl.handle.net/20.500.11750/5806
DOI
10.1063/1.5010825
Publisher
American Institute of Physics Inc.
Related Researcher
  • Author Lee, Shin Buhm shinbuhmlee Lab
  • Research Interests Multifunctional films; Experimental condensed matter physics
Files:
There are no files associated with this item.
Collection:
Department of Emerging Materials Scienceshinbuhmlee Lab1. Journal Articles


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