Controlling stoichiometry and electronic reconstruction at the interface of transition metal oxide heterostructures offers a new way to tune their unique properties, leading to behaviors distinct from the bulk components. Using atomically resolved scanning transmission electron microscopy, element specific x-ray resonant magnetic reflectivity and x-ray magnetic circular dichroism, we have demonstrated that the presence of local oxygen deficiency across the interface and charge transfer to the empty conduction band of SrTiO3 at the interface are the primary drivers for the modified interfacial magnetism in the manganite thin films and Ti3+ induced ferromagnetism at the La0.7Sr0.3MnO3/SrTiO3 interface.
- Gyanendra Panchal
- Federico Stramaglia
- Katharina Fritsch
