Depth-Resolved Profile of the Interfacial Ferromagnetism in CaMnO₃/CaRuO₃ Superlattices.

ABSTRACT: Emergent magnetic phenomena at interfaces represent a frontier in materials science, pivotal for advancing technologies in spintronics and magnetic storage. In this Letter, we utilize a suite of advanced X-ray spectroscopic and scattering techniques to investigate emergent interfacial ferromagnetism in oxide superlattices composed of antiferromagnetic CaMnO₃ and paramagnetic CaRuO₃. Our findings demonstrate that ferromagnetism exhibits an asymmetric profile and may extend beyond the interfacial layer into multiple unit cells of CaMnO₃. Complementary density functional calculations reveal that the interfacial ferromagnetism is driven by the double exchange mechanism, facilitated by charge transfer from Ru to Mn ions. Additionally, defect chemistry, particula

SUBMITTER: Paudel JR 

PROVIDER: S-EPMC11622370 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature