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Mapping Band Alignment across Complex Oxide Heterointerfaces.
- Source :
-
Physical Review Letters . 12/14/2012, Vol. 109 Issue 24, p246807-1-246807-5. 5p. - Publication Year :
- 2012
-
Abstract
- In this study, direct observation of the evolution of electronic structures across complex oxide interfaces has been revealed in the LaAlO3/SrTiO3 model system using cross-sectional scanning tunneling microscopy and spectroscopy. The conduction and valence band structures across the LaAlO3/SrTiO3 interface are spatially resolved at the atomic level by measuring the local density of states. This study directly maps out the electronic reconstructions and a built-in electric field in the polar LaAlO3 layer. Results also clearly reveal the band bending and the notched band structure in the SrTiO3 adjacent to the interface. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00319007
- Volume :
- 109
- Issue :
- 24
- Database :
- Academic Search Index
- Journal :
- Physical Review Letters
- Publication Type :
- Academic Journal
- Accession number :
- 84924422
- Full Text :
- https://doi.org/10.1103/PhysRevLett.109.246807