Magnetic proximity effect at the 3D topological insulator/magnetic insulator interface

Abstract

The magnetic proximity effect is a fundamental feature of heterostructures composed of layers of topological insulators and magnetic materials since it underlies many potential applications in devices with novel quantum functionality. Within density functional theory we study magnetic proximity effect at the 3D topological insulator/magnetic insulator (TI/MI) interface in Bi${}_2$Se${}_3$/MnSe(111) system as an example. We demonstrate that a gapped ordinary bound state which spectrum depends on the interface potential arises in the immediate region of the interface. The gapped topological Dirac state also arises in the system owing to relocation to deeper atomic layers of topological insulator. The gap in the Dirac cone is originated from an overlapping of the topological and ordinary interfacial states. This result being also corroborated by the analytic model, is a key aspect of the magnetic proximity effect mechanism in the TI/MI structures.

10 pages, 3 figures

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Cited by in corpus (68)

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• Chemical Aspects of the Antiferromagnetic Topological Insulator MnBi${}_2$Te${}_4$
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• Highly-ordered wide bandgap materials for quantized anomalous Hall and magnetoelectric effects
• Variety of magnetic topological phases in the (MnBi${}_2$Te${}_4$)(Bi${}_2$Te${}_3$)${}_m$ family
• Tailoring Exchange Couplings in Magnetic Topological Insulator/Antiferromagnet Heterostructures
• Large-gap magnetic topological heterostructure formed by subsurface incorporation of a ferromagnetic layer
• Transport in two-dimensional topological materials: recent developments in experiment and theory
• Independent tuning of electronic properties and induced ferromagnetism in topological insulators with heterostructure approach
• Quantum anomalous Hall effect driven by magnetic proximity coupling in all-telluride based heterostructure
• Large Anomalous Hall Effect in Topological Insulators with Proximitized Ferromagnetic Insulators
• Magnetize Topological Surface States of Bi2Se3 with a CrI3 Monolayer
• Proximity Driven Enhanced Magnetic Order at Ferromagnetic Insulator / Magnetic Topological Insulator Interface
• Enhancing Magnetic Ordering in Cr-doped Bi2Se3 using High-TC Ferrimagnetic Insulator
• Spin-orbit torques from interfacial spin-orbit coupling for various interfaces
• Emerging chiral edge states from the confinement of a magnetic Weyl semimetal in Co${}_3$Sn${}_2$S${}_2$
• Band structure and spin texture of Bi${}_2$Se${}_3$/3d ferromagnetic metal interface
• Strongly exchange-coupled and surface-state-modulated magnetization dynamics in Bi2Se3/YIG heterostructures
• Origin of the Magnetic Spin Hall Effect: Spin Current Vorticity in the Fermi Sea
• Magnetic proximity effect in the 3D topological insulator/ferromagnetic insulator heterostructure
• Resonant photovoltaic effect in doped magnetic semiconductors
• Magnetic Proximity Effect and Interlayer Exchange Coupling of Ferromagnetic/Topological Insulator/Ferromagnetic Trilayer
• Routes to realize the axion-insulator phase in MnBi${}_2$Te${}_4$(Bi${}_2$Te${}_3$)${}_n$ family: a perspective
• Tunneling Planar Hall Effect in Topological Insulators: Spin-Valves and Amplifiers
• Magnetic proximity effect at Bi${}_2$Se${}_3$/EuS interface with broken inversion symmetry
• Interface induced states at the boundary between a 3D topological insulator Bi${}_2$Se${}_3$ and a ferromagnetic insulator EuS
• Improved Domain Wall Dynamics and Magnonic Torques using Topological Insulators
• Axion Insulator State in a Ferromagnet/Topological Insulator/Antiferromagnet Heterostructure
• Absence of magnetic-proximity effect at the interface of Bi${}_2$Se${}_3$ and (Bi,Sb)${}_2$Te${}_3$ with EuS
• Inducing magnetism onto the surface of a topological crystalline insulator
• Dirac-Electrons-Mediated Magnetic Proximity Effect in Topological Insulator / Magnetic Insulator Heterostructures
• Spin Orbit Torque in two dimensional Antiferromagnetic Topological Insulators
• Axion Insulator State with ferromagnetic ordering in CrI3/Bi2Se3/MnBi2Se4 Heterostructure
• Spin diffusion and magnetoresistance in ferromagnet/topological-insulator junctions
• Electronic properties of Bi${}_2$Se${}_3$ dopped by $3d$ transition metal (Mn, Fe, Co, or Ni) ions
• Realization of the Chern insulator and Axion insulator phases in antiferromagnetic $MnTe$-$B{i}_2(Se,Te{)}_3$-$MnTe$ heterostructures
• Magnetic-field-induced topological phase transition in Fe-doped (Bi,Sb)${}_2$Se${}_3$ heterostructures
• Elucidating proximity magnetism through polarized neutron reflectometry and machine learning
• Modeling Near-Surface Bound Electron States in Three-Dimensional Topological Insulator: Analytical and Numerical Approaches
• Topological nature of the proper spin current and the spin-Hall torque
• Quantum Anomalous Hall Effect and Anderson Chern Insulating Regime in Noncollinear Antiferromagnetic 3Q State
• Topological Properties of SnSe/EuS and SnTe/CaTe Interfaces
• Simultaneous Magnetic and Charge Doping of Topological Insulators with Carbon
• Spin transfer torques due to the bulk states of topological insulators
• Emergent Momentum-Space Skyrmion Texture on the Surface of Topological Insulators
• Topological Magnetoelectric Effect: Nonlinear Time-Reversal-Symmetric Response, Witten Effect, and Half-Integer Quantum Hall Effect
• In-depth Analysis of Anisotropic Magnetoconductance in Bi${}_2$Se${}_3$ thin films with electron-electron interaction corrections
• Partial Charge Transfer and Absence of Induced Magnetization in EuS(111)/Bi${}_2$Se${}_3$ Heterostructures
• Phase-Controllable Nonlocal Spin Polarization in Proximitized Nanowires
• Electric and magnetic fields tuned spin-polarized topological phases in two-dimensional ferromagnetic MnBi${}_4$Te${}_7$
• Magnetic Proximity Effect in an Antiferromagnetic Insulator/Topological Insulator Heterostructure with Sharp Interface
• Manipulating Spin-Lattice Coupling in Layered Magnetic Topological Insulator Heterostructure $via$ Interface Engineering
• Transport in Selectively Magnetically Doped Topological Insulator Wires
• Thermal screening at finite chemical potential on a topological surface and its interplay with proximity-induced ferromagnetism
• Universally optimizable strategy for magnetic gaps towards high-temperature quantum anomalous Hall states via magnetic-insulator/topological-insulator building-blocks
• Engineering chiral edge states in 2D topological insulator/ferromagnetic insulator heterostructures
• Electromagnon on the Surface of Magnetic Topological Insulator
• Formation of bound states from the edge states of 2D topological insulator by macroscopic magnetic barriers
• The anomalous Hall Effect in a Magnetically Extended Topological Insulator Heterostructure
• Exchange and collective behavior of magnetic impurities in a disordered helical metal
• AC anomalous Hall effect in topological insulator Josephson junctions
• Edge bands and vertical transport in topological insulator/magnetic insulator heterostructures
• Charged magnons on the surface of a topological insulator
• Strong photon coupling to high-frequency antiferromagnetic magnons via topological surface states
• Long-range permeation of wave function and superficial surface state due to strong quantum size effects in topological Bi/BiSb heterojunctions
• Chiral electronic network within skyrmionic lattice on topological insulator surfaces
• Proximity-induced Rashba spin-orbit interaction in BaMnO${}_{\text{3}}|$KTaO${}_{\text{3}}$ heterostructure for antiferromagnetic spintronics