%0 Journal Article %K Stoichiometry %K Spatial distribution %K Electronic states %K Electronic structure %K Band gaps %K Growth conditions %K Semiconducting bismuth compounds %K Cathodoluminescence spectroscopy %K Defect emission %K Defect state %K Depth-resolved %K Film properties %K Interface electronics %K Localized electronic state %K Near-band edge emissions %A J Zhang %A M Rutkowski %A L.W Martin %A T Conry %A Ramamoorthy Ramesh %A J.F Ihlefeld %A A Melville %A D.G Schlom %A L.J Brillson %B Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures %D 2009 %G eng %P 2012-2014 %R 10.1116/1.3130152 %T Surface, bulk, and interface electronic states of epitaxial BiFeO 3 films %V 27