Tailoring Exchange Couplings in Magnetic Topological Insulator/Antiferromagnet Heterostructures

Abstract

Magnetic topological insulators such as Cr-doped (Bi,Sb)2Te3 provide a platform for the realization of versatile time-reversal symmetry-breaking physics. By constructing heterostructures with Néel order in an antiferromagnetic CrSb and magnetic topological order in Cr-doped (Bi,Sb)2Te3, we realize emergent interfacial magnetic phenomena which can be tailored through artificial structural engineering. Through deliberate geometrical design of heterostructures and superlattices, we demonstrate the use of antiferromagnetic exchange coupling in manipulating the magnetic properties of the topological surface massive Dirac fermions. This work provides a new framework on integrating topological insulators with antiferromagnetic materials and unveils new avenues towards dissipationless topological antiferromagnetic spintronics.

25 pages, 4 figures

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Cited by in corpus (54)

• Hard magnetic properties in nanoflake van der Waals Fe3GeTe2
• Chemical Aspects of the Antiferromagnetic Topological Insulator MnBi${}_2$Te${}_4$
• Giant Valley Splitting in Monolayer WS2 by Magnetic Proximity Effect
• Natural van der Waals heterostructural single crystals with both magnetic and topological properties
• Above 400 K Robust Perpendicular Ferromagnetic Phase in a Topological Insulator
• Spin-split collinear antiferromagnets: a large-scale ab-initio study
• Route Towards Dirac and Weyl Antiferromagnetic Spintronics
• Topological carbon materials: a new perspective
• Magnon straintronics in the 2D van der Waals ferromagnet CrSBr from first-principles
• Topological transitions induced by antiferromagnetism in a thin-film topological insulator
• Pressure-induced Topological and Structural Phase Transitions in an Antiferromagnetic Topological Insulator
• Record-High Proximity-Induced Anomalous Hall Effect in (Bi${}_x$Sb${}_{1-x}$)2Te${}_3$ Thin Film Grown on CrGeTe${}_3$ Substrate
• Berry Curvature Engineering by Gating Two-Dimensional Antiferromagnets
• Tailoring Hybrid Anomalous Hall Response in Engineered Magnetic Topological Insulator Heterostructures
• Changes of Magnetism in a Magnetic Insulator due to Proximity to a Topological Insulator
• Weak Localization and Antilocalization in Topological Materials with Impurity Spin-Orbit Interactions
• Observation of Interfacial Antiferromagnetic Coupling between Magnetic Topological Insulator and Antiferromagnetic Insulator
• Dirac-Electrons-Mediated Magnetic Proximity Effect in Topological Insulator / Magnetic Insulator Heterostructures
• Adsorption-controlled growth of MnTe(Bi2Te3)n by molecular beam epitaxy exhibiting stoichiometry-controlled magnetism
• Effects of filling, strain, and electric field on the Néel vector in antiferromagnetic CrSb
• Do topology and ferromagnetism cooperate at the EuS/Bi${}_2$Se${}_3$ interface?
• Towards the manipulation of topological states of matter: A perspective from electron transport
• Magnon-induced superconductivity in a topological insulator coupled to ferro- and antiferromagnetic insulators
• Ferromagnetic state above room temperature in a proximitized topological Dirac semimetal
• Fully spin-polarized quadratic non-Dirac bands realized quantum anomalous Hall effect
• Various magnetism of the compressed antiferromagnetic topological insulator EuSn2As2
• Elucidating proximity magnetism through polarized neutron reflectometry and machine learning
• Electromagnetic effects induced by time-dependent axion field
• Design of L2_1-type antiferromagnetic semiconducting full-Heusler compounds: A first principles DFT+GW study
• Unusual Intralayer Ferromagnetism Between S = 5/2 ions in MnBi${}_2$Te${}_4$: Role of Empty Bi $p$ States
• Magnetic proximity effect of a topological insulator and a ferromagnet in thin film bilayers of $BiSbT{e}_3$ and $SrRu{O}_3$
• Non-equilibrium spin density and spin-orbit torque in three dimensional topological insulators - antiferromagnet heterostructure
• Electron transport through antiferromagnetic spin textures and skyrmions in a magnetic tunnel junction
• Magnetic Order in 3D Topological Insulators -- Wishful Thinking or Gateway to Emergent Quantum Effects?
• Electrically Tunable Wafer-Sized Three-Dimensional Topological Insulator Thin Films Grown by Magnetron Sputtering
• Altermagnetic band splitting in 10 nm epitaxial CrSb thin films
• Tailoring spin waves in 2D transition metal phosphorus trichalcogenides via atomic-layer substitution
• Topological antiferromagnetic spintronics: Part of a collection of reviews on antiferromagnetic spintronics
• Manipulating Spin-Lattice Coupling in Layered Magnetic Topological Insulator Heterostructure $via$ Interface Engineering
• Universally optimizable strategy for magnetic gaps towards high-temperature quantum anomalous Hall states via magnetic-insulator/topological-insulator building-blocks
• Finite temperature fluctuation-induced order and responses in magnetic topological insulators
• Intermediate anomalous Hall states induced by noncollinear spin structure in magnetic topological insulator MnBi2Te4
• Topological Insulators-Based Magnetic Heterostructure
• Interface Engineering Enabled Low Temperature Growth of Magnetic Insulator on Topological Insulator
• From classical to quantum regime of topological surface states via defect engineering
• Single-crystalline CrSb(0001) thin films grown by dc magnetron co-sputtering
• Topological staggered field-electric effect with bipartite magnets
• Electric field effect on electron gas spins in two-dimensional magnets with strong spin-orbit coupling
• Epitaxial growth and magnetic characterization of EuSe thin films with various crystalline orientations
• Formation of bound states from the edge states of 2D topological insulator by macroscopic magnetic barriers
• Carrier Density and Thickness Dependent Proximity Effect in Doped Topological Insulator -- Metallic Ferromagnet Bilayers
• Fate of surface gaps in magnetic topological insulators
• Strong photon coupling to high-frequency antiferromagnetic magnons via topological surface states
• Theory of Tunneling between Two-Dimensional Electron Layers Driven by Spin Pumping: Adiabatic Regime and Beyond