Intrinsic Magnetic Proximity Effect at the Atomically Sharp Interface of Co_xFe_3-xO₄/Pt Grown by Molecular Beam Epitaxy.

ABSTRACT: Co_xFe_3-xO₄(CFO)/Pt bilayers prepared by molecular beam epitaxy were investigated for the anomalous Hall effect and X-ray magnetic circular dichroism (XMCD). We found that the anomalous Hall effect originates from a magnetic proximity effect at the CFO/Pt interface. The XMCD signal in the Pt L-edge was obtained only for the sample deposited at 600 °C, indicating that the magnetic proximity effect is sensitive to the interface structure. Transmission electron microscopy images of the CFO/Pt interface and XMCD measurements of Co and Fe L-edges do not provide direct evidence for interfacial atomic diffusion or alloying. In summary, these results suggest that the magnetic proximity effect is robust for transport properties, such as th

SUBMITTER: Nodo S 

PROVIDER: S-EPMC10357544 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature