Anomalous Hall effect in YIG$|$Pt bilayers

Abstract

We measure the ordinary and the anomalous Hall effect in a set of yttrium iron garnet$|$platinum (YIG$|$Pt) bilayers via magnetization orientation dependent magnetoresistance experiments. Our data show that the presence of the ferrimagnetic insulator YIG leads to an anomalous Hall like signature in Pt, sensitive to both Pt thickness and temperature. Interpretation of the experimental findings in terms of the spin Hall anomalous Hall effect indicates that the imaginary part of the spin mixing interface conductance $G_{\mathrm{i}}$ plays a crucial role in YIG$|$Pt bilayers. In particular, our data suggest a sign change in $G_{\mathrm{i}}$ between $10\mathrm{K}$ and $300\mathrm{K}$. Additionally, we report a higher order Hall effect, which appears in thin Pt films on YIG at low temperatures.

four pages including supplementary information

References in corpus (9)

• Spin Transfer Torques
• Direct electronic measurement of the spin Hall effect
• Theory of spin Hall magnetoresistance
• Scaling behavior of the spin pumping effect in ferromagnet/platinum bilayers
• Investigation of induced Pt magnetic polarization in Pt/Y3Fe5O12 bilayers
• Anomalous Hall effect in YIG$|$Pt bilayers
• Angle-dependent magnetotransport in cubic and tetragonal ferromagnets: Application to (001)- and (113)A-oriented (Ga,Mn)As
• Advanced resistivity model for arbitrary magnetization orientation applied to a series of compressive- to tensile-strained (Ga,Mn)As layers
• Interface-dependent magnetotransport properties for thin Pt films on ferrimagnetic Y3Fe5O12

Cited by in corpus (8)

• Anomalous Hall hysteresis in Tm3Fe5O12/Pt with strain-induced perpendicular magnetic anisotropy
• Probing Magnetism in Insulating Cr2Ge2Te6 by Induced Anomalous Hall Effect in Pt
• Anomalous Hall effect in YIG$|$Pt bilayers
• Effects of transition-metal spacers on the spin-orbit torques, spin Hall magnetoresistance, and magnetic anisotropy of Pt/Co bilayers
• Suppression of the fieldlike spin-orbit torque efficiency due to the magnetic proximity effect in ferromagnet/platinum bilayers
• Detection of induced paramagnetic moments in Pt on Y${}_3$Fe${}_5$O${}_{12}$ via x-ray magnetic circular dichroism
• Disclosing antiferromagnetism in tetragonal Cr2O3 by electrical measurements
• Pure spin current transport in gallium doped zinc oxide