Perfect Valley Filter in Topological Domain Wall

Abstract

We propose a realization of perfect valley filters based on the chiral domain-wall channels between a quantum anomalous Hall insulator and a quantum valley Hall insulator. Uniquely, all these channels reside in the same valley and propagate unidirectionally, $100\%$ valley-polarizing passing-by carriers without backscattering. The valley index, the chirality, and the number of the channels are protected by topological charges, controllable by external fields, and detectable by circular dichroism.

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Cited by in corpus (38)

• Topological Phases in Two-Dimensional Materials: A Brief Review
• Valley-dependent properties of monolayer MoSi${}_2$N${}_4$, WSi${}_2$N${}_4$ and MoSi${}_2$As${}_4$
• Two-dimensional Weyl Half Semimetal and Tunable Quantum Anomalous Hall Effect in Monolayer PtCl${}_3$
• Valleytronics in merging Dirac cones: All-electric-controlled valley filter, valve and universal reversible logic gate
• Valley-Layer Coupling: A New Design Principle for Valleytronics
• Observation of Acoustic Valley Vortex States and Valley-Chirality Locked Beam Splitting
• Dirac and Weyl Materials: Fundamental Aspects and Some Spintronics Applications
• Helical Network Model for Twisted Bilayer Graphene
• van der Waals Heterostructures of Germanene, Stanene and Silicene with Hexagonal Boron Nitride and Their Topological Domain Walls
• Quantum Spin-Valley Hall Kink States: From Concept to Materials Design
• Manipulation and Characterization of the Valley Polarized Topological Kink States in Graphene Based Interferometers
• Quantum Valley Hall Effect and Perfect Valley Filter Based on Photonic Analogs of Transitional Metal Dichalcogenides
• The valley filter efficiency of monolayer graphene and bilayer graphene line defect model
• Dissipationless Layertronics in Axion Insulator $\mathrm{MnB}{\mathrm{i}}_2\mathrm{T}{\mathrm{e}}_4$
• Cornertronics in Two-Dimensional Second-Order Topological Insulators
• Robust all-electrical topological valley filtering using monolayer 2D-Xenes
• A Non-Hermitian Moiré Valley Filter
• Pure spin current and perfect valley filter by designed separation of the chiral states in two-dimensional honeycomb lattices
• Current partition at zero-line intersection of quantum anomalous Hall topologies
• Metallic Network of Topological Domain Walls
• Perfect valley filter based on topological phase in disordered $\mathrm{Sb}$ Monolayer Heterostructure
• Topological Zero-Line Modes in Folded Bilayer Graphene
• Quantum Valley Hall effect without Berry curvature
• Building programable integrated circuits through disordered Chern insulators
• Topological valley transport at the curved boundary of a folded bilayer graphene
• Floquet High Chern Insulators in Periodically Driven Chirally Stacked Multilayer Graphene
• Layer Zero-Line Modes in Antiferromagnetic Topological Insulators
• Valley-Selective Topological Ordered States in Irradiated Bilayer Graphene
• Mesoscopic valley filter in graphene Corbino disk containing a p-n junction
• Probing valley filtering effect by Andreev reflection in zigzag graphene nanoribbon
• Buckled honeycomb lattice and unconventional magnetic response
• Bulk-Fermi-Arc Transition Induced Large Photogalvanic Effect in Weyl Semimetals
• Absence of edge states at armchair edges in inhomogeneously strained graphene under a pseudomagnetic field
• Valley filters, accumulators, and switches induced in graphene quantum dots by lines of adsorbed hydrogen atoms
• Physical Origin of Current Partition at a Topological Trifurcation
• Omnidirectional domain wall modes protected by fragile topological states
• Valley Gapless Semiconductor: Models and Applications
• Intrinsic nonlinear valley Nernst effect