Interfacial engineering manipulation of magnetic anisotropy evolution via orbital reconstruction in low-dimensional manganite superlattices

Control of magnetic anisotropy in low-dimensional systems is paramount importance terms their fundamental and technological perspectives. La0.7Sr0.3MnO3 (LSMO) a ferromagnetic half-metal with high Curie temperature many efforts have been made to control its anisotropy. However, the relationship between evolution orientation electronic structure LSMO still remains poorly understood. Here, high-quality superlattices comprised SrMnO3 (SMO) layers are synthesized compatible at atomic scale. Their gradually varied from planar perpendicular by increasing SMO thickness, special fourfold also observed intermediate superlattice thickness. The these confirmed transport measurements. Moreover, X-ray linear dichroism measurements first-principles calculations reveal interfacial orbital reconstruction in-plane out-of-plane reorientation transition. Therefore, new microscopic method for manipulation developed present study, enabling discovery novel phenomena as well properties.