Investigation of induced Pt magnetic polarization in Pt/Y3Fe5O12 bilayers

Abstract

Using X-ray magnetic circular dichroism (XMCD) measurements, we explore the possible existence of induced magnetic moments in thin Pt films deposited onto the ferrimagnetic insulator yttrium iron garnet (Y3Fe5O12). Such a magnetic proximity effect is well established for Pt/ferromagnetic metal heterostructures. Indeed, we observe a clear XMCD signal at the Pt L3 edge in Pt/Fe bilayers, while no such signal can be discerned in XMCD traces of Pt/Y3Fe5O12 bilayers. Integrating the XMCD signals allows to estimate an upper limit for the induced Pt magnetic polarization in Pt/Y3Fe5O12 bilayers.

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• Spin Hall effect
• Enhanced Gilbert Damping in Thin Ferromagnetic Films
• Spin Seebeck insulator
• Observation of the Spin-Seebeck Effect in a Ferromagnetic Semiconductor
• Quantifying spin Hall angles from spin pumping: Experiments and Theory
• Scaling behavior of the spin pumping effect in ferromagnet/platinum bilayers
• Local charge and spin currents in magnetothermal landscapes

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