Resonant soft x-ray scattering studies of interface reconstructions in SrTiO3/LaAlO3 superlattices

We present resonant soft x-ray scattering studies of Ti 3d and O 2p states at the interfaces of SrTiO3/LaAlO3 superlattices. From reflectivity analyses, focusing on the (003) peak which is forbidden for our “ideal” superlattice structure, we concluded that the LaO∣TiO2/SrO and the SrO∣AlO2/LaO inter...

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Bibliographic Details
Published in:Journal of applied physics 2009-10, Vol.106 (8)
Main Authors: Wadati, H., Hawthorn, D. G., Geck, J., Higuchi, T., Hikita, Y., Hwang, H. Y., Kourkoutis, L. Fitting, Muller, D. A., Huang, S.-W., Huang, D. J., Lin, H.-J., Schüßler-Langeheine, C., Wu, H.-H., Schierle, E., Weschke, E., Ingle, N. J. C., Sawatzky, G. A.
Format: Article
Language:English
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Summary:We present resonant soft x-ray scattering studies of Ti 3d and O 2p states at the interfaces of SrTiO3/LaAlO3 superlattices. From reflectivity analyses, focusing on the (003) peak which is forbidden for our “ideal” superlattice structure, we concluded that the LaO∣TiO2/SrO and the SrO∣AlO2/LaO interfaces have distinct reconstructions, breaking the heterostructure symmetry.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.3246788