Interfacial mechanism in the anomalous Hall effect of Co/Bi${}_2$O${}_3$ bilayers

Abstract

Oxide interfaces are a source of spin-orbit coupling which can lead to novel spin-to-charge conversion effects. In this work the contribution of the Bi${}_2$O${}_3$ interface to the anomalous Hall effect of Co is experimentally studied in Co/Bi${}_2$O${}_3$ bilayers. We evidence a variation of 40% in the AHE of Co when a Bi${}_2$O${}_3$ capping layer is added to the ferromagnet. This strong variation is attributed to an additional source of asymmetric transport in Co/Bi${}_2$O${}_3$ bilayers that originates from the Co/Bi${}_2$O${}_3$ interface and contributes to the skew scattering.

arXiv comment7 pages, 4 figures

References in corpus (20)

• Anomalous Hall effect
• New Perspectives for Rashba Spin-Orbit Coupling
• Emergent Phenomena Induced by Spin-Orbit Coupling at Surfaces and Interfaces
• Proper Scaling of the Anomalous Hall Effect
• Spin-pumping into surface states of topological insulator α-Sn, spin to charge conversion at room temperature
• Giant room temperature interface spin Hall and inverse spin Hall effects
• Symmetry-imposed shape of linear response tensors
• Spin Transport at Interfaces with Spin-Orbit Coupling: Formalism
• Spin Hall Effect induced by resonant scattering on impurities in metals
• Origin of inverse Rashba-Edelstein effect at Cu/Bi interface using lateral spin valves
• Relation between spin Hall effect and anomalous Hall effect in 3$d$ ferromagnetic metals
• Experimental observation of spin to charge current conversion at non-magnetic metal/Bi2O3 interfaces
• Orientation Dependence of the Intrinsic Anomalous Hall Effect in hcp Cobalt
• Skew scattering in dilute ferromagnetic alloys
• Clear variation of spin splitting by changing electron distribution at non-magnetic metal/Bi2O3 interfaces
• Ballistic spin transport in the presence of interfaces with strong spin-orbit coupling
• Spin diffusion length of Permalloy using spin absorption in lateral spin valves
• Current-induced spin polarization at the surface of metallic films: a theorem and an ab initio calculation
• Boundary conditions for spin and charge diffusion in the presence of interfacial spin-orbit coupling
• Interfacial spin Hall effect and spin swapping in Fe|Au bilayer from first principles

Cited by in corpus (4)

• Spin Hall Effect in Bilayer Graphene Combined with an Insulator up to Room Temperature
• Spin-orbit torques and magnetotransport properties of $\alpha$-Sn and $\beta$-Sn heterostructures
• Evidence for spin swapping from modulation of transverse resistance in magnetic heterostructures with Rashba interface
• Reliability of spin-to-charge conversion measurements in graphene-based lateral spin valves