“Charge Leakage” at LaMnO3/SrTiO3 Interfaces (pages 627–632)
Javier Garcia-Barriocanal, Flavio Y. Bruno, Alberto Rivera-Calzada, Zouhair Sefrioui, Norbert M. Nemes, Mar Garcia-Hernández, Juan Rubio-Zuazo, German R. Castro, Maria Varela, Stephen J. Pennycook, Carlos Leon and Jacobo Santamaria
Article first published online: 24 NOV 2009 | DOI: 10.1002/adma.200902263
Direct evidence for charge leakage at the interface of epitaxial SrTiO3/LaMnO3 superlattices with atomically sharp interfaces is provided. The direction of charge leakage can be reversed by changing the LMO/STO thickness ratio. This result will be important for the understanding of some of the reported limitations of oxide devices involving manganite/titanate interfaces.