We observe an induced switchable magnetic moment of $1.6\pm 0.40{\mu }_{\mathrm{B}}/\mathrm{Fe}$ for the nominally antiferromagnetic $\mathrm{LaFe}{\mathrm{O}}_3$ extending two to four interface layers into the non–charge transfer system $\mathrm{L}{\mathrm{a}}_{0.7}\mathrm{S}{\mathrm{r}}_{0.3}\mathrm{Mn}{\mathrm{O}}_3\text{/}\mathrm{LaFe}{\mathrm{O}}_3\text{/}\mathrm{SrTi}{\mathrm{O}}_3\left(111\right)$. Simultaneously a mismatch of oxygen octahedra rotations at the interface implies an atomic reconstruction of reduced symmetry at the interface, reaching two to five layers into $\mathrm{LaFe}{\mathrm{O}}_3$. Density functional theory of a structure with atomic reconstruction and different correlation strength shows a ferrimagnetic state with a net Fe moment at the interface. Together these results suggest that engineered oxygen octahedra rotations, affecting the local symmetry, affect electron correlations and can be used to promote magnetic properties.

• Received 6 July 2016

DOI:https://doi.org/10.1103/PhysRevB.94.201115