Quantum spin Hall effect in bilayer honeycomb lattices with C-type antiferromagnetic order

Abstract

We propose a scheme to realize time-reversal symmetry-broken quantum spin Hall insulators using bilayer honeycomb lattices, combining intrinsic spin-orbit coupling, C-type antiferromagnetic ordering, and staggered potentials. The C-type antiferromagnetic order emerges from the interplay between intralayer antiferromagnetism and interlayer ferromagnetism. The system's topological properties are characterized by the spin Chern number. We present the topological phase diagram of the bilayer honeycomb lattice, providing a detailed insight into the stability and tunability of the quantum spin Hall effect in this system. The presence of helical edge states is confirmed by the measurement of quantized longitudinal resistance values of 3/2(h/e2) and 1/2(h/e2) in a sixterminal Hall-bar device. Remarkably, this quantum spin Hall insulator phase is protected by interlayer parity-time (PT) symmetry, despite the breaking of time-reversal symmetry.

arXiv comment7 pages, 5 figures

References in corpus (46)

• Topological Insulators
• Topological insulators and superconductors
• Quantum Spin Hall Effect in Graphene
• Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
• $Z_2$ Topological Order and the Quantum Spin Hall Effect
• Berry Phase Effects on Electronic Properties
• Classification of topological quantum matter with symmetries
• Antiferromagnetic spintronics
• Antiferromagnetic spintronics
• Quantized Anomalous Hall Effect in Magnetic Topological Insulators
• Quantum Spin Hall Effect
• Colloquium: Topological Band Theory
• Prediction and observation of the first antiferromagnetic topological insulator
• Intrinsic magnetic topological insulators in van der Waals layered MnBi${}_2$Te${}_4$-family materials
• First Principles Calculation of Anomalous Hall Conductivity in Ferromagnetic bcc Fe
• Nonlocal edge state transport in the quantum spin Hall state
• Topological axion states in magnetic insulator MnBi${}_2$Te${}_4$ with the quantized magnetoelectric effect
• Robust axion insulator and Chern insulator phases in a two-dimensional antiferromagnetic topological insulator
• Topological Defects and Gapless Modes in Insulators and Superconductors
• Quantum Anomalous Hall Effect in Hg${}_{1-y}$Mn${}_y$Te Quantum Wells
• Antiferromagnetic topological insulators
• Quantum Spin Hall Effect and Topologically Invariant Chern Numbers
• Unique thickness-dependent properties of the van der Waals interlayer antiferromagnet $\mathrm{MnB}{\mathrm{i}}_2\mathrm{T}{\mathrm{e}}_4$ films
• Berry phase, hyperorbits, and the Hofstadter spectrum: semiclassical dynamics in magnetic Bloch bands
• Robustness of the Spin-Chern number
• Layer Hall effect in a 2D topological Axion antiferromagnet
• Nondissipative Spin Hall Effect via Quantized Edge Transport
• Calculation of intrinsic spin Hall conductivity by Wannier interpolation
• Two-Dimensional Topological Insulator State and Topological Phase Transition in Bilayer Graphene
• Engineering Corner States from Two-Dimensional Topological Insulators
• Disorder-induced enhancement of transport through graphene p-n junctions
• Topological non-symmorphic crystalline insulators
• Quantum transport through a graphene nanoribbon-superconductor junction
• Tunable Layer Circular Photogalvanic Effect in Twisted Bilayers
• Topological Insulators with Commensurate Antiferromagnetism
• Green's function technique for studying electron flow in 2D mesoscopic samples
• Intrinsic Layer-Polarized Anomalous Hall Effect in Bilayer MnBi2Te4
• Quantum spin Hall effect in monolayer and bilayer TaIrTe${}_4$
• Magnetic Proximity Evoked Colossal Bulk Photovoltaics in Crystalline Symmetric Layers
• Second-order topological corner states in zigzag graphene nanoflake with different types of edge magnetic configurations
• Engineering second-order topological insulators via coupling two first-order topological insulators
• The Effect of the Disorder on the Longitudinal Resistance of a Graphene p-n Junction in Quantum Hall Regime
• The General Principle behind Magnetization-induced Second-Order Topological Corner States in the Kane-Mele Model
• Two-Dimensional Higher-Order Topological Metals
• Anomalies in the switching dynamics of C-type antiferromagnets and antiferromagnetic nanowires
• Classification of magnetic order from electronic structure by using machine learning

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