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.

References in corpus (3)

• Spin Seebeck insulator
• Observation of the Spin-Seebeck Effect in a Ferromagnetic Semiconductor
• Scaling behavior of the spin pumping effect in ferromagnet/platinum bilayers

Cited by in corpus (7)

• Anomalous Hall effect in YIG$|$Pt bilayers
• Intrinsic magnetoresistance in metal films on ferromagnetic insulators
• Sign of inverse spin Hall voltages generated by ferromagnetic resonance and temperature gradients in yttrium iron garnet|platinum bilayers
• Unambiguous separation of the inverse spin Hall and anomalous Nernst Effects within a ferromagnetic metal using the spin Seebeck effect
• Spin Seebeck devices using local on-chip heating
• Interface-dependent magnetotransport properties for thin Pt films on ferrimagnetic Y3Fe5O12
• Microwave-induced spin currents in ferromagnetic-insulator|normal-metal bilayer system