Emerging magnetism and anomalous Hall effect in iridate-manganite heterostructures

Abstract

Strong Coulomb repulsion and spin-orbit coupling are known to give rise to exotic physical phenomena in transition metal oxides. Initial attempts to investigate systems where both of these fundamental interactions are comparably strong, such as 3d and 5d complex oxide superlattices, have revealed properties that only slightly differ from the bulk ones of the constituent materials. Here, we observe that the interfacial coupling between the 3d antiferromagnetic insulator SrMnO3 and the 5d paramagnetic metal SrIrO3 is enormously strong, yielding an anomalous Hall response as the result of charge transfer driven interfacial ferromagnetism. These findings show that low dimensional spin-orbit entangled 3d-5d interfaces provide an avenue to uncover technologically relevant physical phenomena unattainable in bulk materials.

References in corpus (10)

• Novel Jeff = 1/2 Mott State Induced by Relativistic Spin-Orbit Coupling in Sr2IrO4
• Bandwidth-Controlled Insulator-Metal Transition and Correlated Metallic State in 5$d$ Transition Metal Oxides Sr${}_{n+1}$Ir${}_n$O${}_{3n+1}$ ($n$=1, 2, and $\infty$)
• Twisted Hubbard Model for Sr2IrO4: Magnetism and Possible High Temperature Superconductivity
• Quantum transport theory of anomalous electric, thermoelectric, and thermal Hall effects in ferromagnets
• Microscopic study of spin-orbit-induced Mott insulator in Ir oxides
• Electronic reconstruction at SrMnO3-LaMnO3 superlattice interfaces
• Fabrication of (111)-oriented Ca0.5Sr0.5IrO3/SrTiO3 superlattices; a designed playground for honeycomb physics
• Fractionally delta-doped oxide superlattices for higher carrier mobilities
• Thermopower enhancement by fractional layer control in 2D oxide superlattices
• Electrical transport properties of polar heterointerface between KTaO3 and SrTiO3

Cited by in corpus (13)

• Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in (La${}_{1-x}$Sr${}_x$MnO${}_3$)/(SrIrO${}_3$) Superlattices
• Band alignment and charge transfer in complex oxide interfaces
• Charge transfer in iridate-manganite superlattices
• Synthesis and electronic properties of Ruddlesden-Popper strontium iridate epitaxial thin films stabilized by control of growth kinetics
• Correlated Quantum Phenomena of Spin-Orbit Coupled Perovskite Oxide Heterostructures: Cases of SrRuO3 and SrIrO3-Based Artificial Superlattices
• Low temperature ferromagnetism in perovskite SrIrO${}_3$ films
• Emergence of insulating ferrimagnetism and perpendicular magnetic anisotropy in 3d-5d perovskite oxide composite films for insulator spintronic
• Magnetic excitations in double perovskite iridates La${}_2$$M$IrO${}_6$ ($M$ = Co, Ni, and Zn) mediated by 3$d$-5$d$ hybridization
• Interfacial-hybridization-modified Ir Ferromagnetism and Electronic Structure in LaMnO${}_3$/SrIrO${}_3$ Superlattices
• Study of Nontrivial Magnetism in 3$d$-5$d$ Transition Metal based Double Perovskites
• Magnetotransport of SrIrO3 films on (110) DyScO3
• Electric field control of anomalous Hall effect in CaIrO${}_3$/CaMnO${}_3$ heterostructure
• Growth-sequence-dependent interface magnetism of SrIrO${}_3$ - La${}_{0.7}$Sr${}_{0.3}$MnO${}_3$ bilayers