2018/07/24 by Panagiota Bougiatioti, Bougiatioti, Panagiota, Orestis Manos +11
Materials Science · Physics and Astronomy · #FOS: Physical sciences #Heusler alloys: electronic and magnetic properties #Magnetic Properties and Applications #Magnetic properties of thin films #Materials Science (cond-mat.mtrl-sci)
paper · pdf · doi:10.48550/arxiv.1807.09032
openalex publication_date 2018/07/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present a systematic study of the magnetic proximity effect in Pt, depending on the magnetic moment and anisotropy of adjacent metallic ferromagnets. Element-selective x-ray resonant magnetic reflectivity measurements at the Pt absorption edge (11565 eV) are carried out to investigate the spin polarization of Pt in Pt/Co_\textrm1-xFe_\textrmx bilayers. We observe the largest magnetic moment of (0.72 ± 0.03) μ_\textrmB per spin polarized Pt atom in Pt/Co_\textrm33Fe_\textrm67, following the Slater-Pauling curve of magnetic moments in Co-Fe alloys. In general, a clear linear dependence is observed between the Pt moment and the moment of the adjacent ferromagnet. Further, we study the magnetic anisotropy of the magnetized Pt which clearly adopts the magnetic anisotropy of the ferromagnet below. This is depicted for Pt on Fe(001) and on Co_\textrm50Fe_\textrm50(001), which have a 45∘ relative rotation of the fourfold magnetocrystalline anisotropy.