Spin‐Charge Conversion in Fe/Au/Sb <sub>2</sub> Te <sub>3</sub> Heterostructures as Probed By Spin Pumping Ferromagnetic Resonance
نویسندگان
چکیده
Large-area antimony telluride (Sb2Te3) thin films are grown by a metal organic chemical vapor deposition technique on 4” Si(111) substrates, and their topological character probed magnetoconductance measurements. When interfaced with Fe films, broadband ferromagnetic resonance spectroscopy (BFMR) shows clear increase of the damping parameter in Fe/Sb2Te3 when compared to reference layer, which may suggest occurrence spin pumping (SP) into Sb2Te3. Simultaneously, X-ray reflectivity conversion electron Mossbauer evidence development chemically magnetically pure interface. However, conducting SP-FMR, it is shown that no spin-to-charge (S2C) occurs Fe/Sb2Te3, while SP signal develops introducing 5 nm Au interlayer between Sb2Te3, measured inverse Edelstein effect efficiency λIEE = 0.27 nm. The results shed some light correlation among chemical-structural-magnetic properties interface, broadening magnetic as detected BFMR, S2C, SP-FMR.
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ژورنال
عنوان ژورنال: Advanced Materials Interfaces
سال: 2021
ISSN: ['2196-7350']
DOI: https://doi.org/10.1002/admi.202101244