Theory of Magnetic Edge States in Chiral Graphene Nanoribbons

Abstract

Using a model Hamiltonian approach including electron-electron interactions, we systematically investigate the electronic structure and magnetic properties of chiral graphene nanoribbons. We show that the presence of magnetic edge states is an intrinsic feature of smooth graphene nanoribbons with chiral edges, and discover a number of structure-property relations. Specifically, we study the dependence of magnetic moments and edge-state energy splittings on the nanoribbon width and chiral angle as well as the role of environmental screening effects. Our results address a recent experimental observation of signatures of magnetic ordering in chiral graphene nanoribbons and provide an avenue towards tuning their properties via the structural and environmental degrees of freedom.

4 pages, 5 figures

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• Spatially Resolving Spin-split Edge States of Chiral Graphene Nanoribbons
• A Guide to the Design of Electronic Properties of Graphene Nanoribbons
• Single Spin Localization and Manipulation in Graphene Open-Shell Nanostructures
• Substrate-Independent Growth of Atomically Precise Chiral Graphene Nanoribbons
• Experimentally Engineering the Edge Termination of Graphene Nanoribbons
• Topological phase transition in chiral graphene nanoribbons: from edge bands to end states
• Quantum Nature of Edge Magnetism in Graphene
• Edge states in graphene-like systems
• Detecting the spin-polarization of edge states in graphene nanoribbons
• Quantum Monte Carlo studies of edge magnetism in chiral graphene nanoribbons
• Edge magnetization and local density of states in chiral nanoribbons
• Correlated Topological States in Graphene Nanoribbon Heterostructures
• The RKKY Coupling between Impurity Spins in Graphene Nanoflakes
• Addressing electron spins embedded in metallic graphene nanoribbons
• Bottom-up fabrication of atomically precise graphene nanoribbons
• Electronic structure of oxygen-functionalized armchair graphene nanoribbons
• Spin relaxation related to the edge scattering in graphene
• Effective models for strong electronic correlations at graphene edges
• Unveiling and Manipulating Hidden Symmetries in Graphene Nanoribbons
• Quantum Hall States in Graphene from Strain-Induced Nonuniform Magnetic Fields
• Magnetic Phases of Graphene Nanoribbons under Potential Fluctuations
• Engineering Quantum Spin Hall Effect in Graphene Nanoribbons via Edge Functionalization
• Topologically protected, correlated end spin formation in carbon nanotubes
• Robust band gap and half-metallicity in graphene with triangular perforations
• Magnetic frustration and fractionalization in oligo(indenoindenes)
• Dependence of atomic arrangement on length of flat bands in zigzag BC2N nanoribbons
• Interplay between symmetry and spin-orbit coupling in graphene nanoribbons
• Graphene-based spin switch device via modulated Rashba field and strain
• Models of Strong Interaction in Flat-Band Graphene Nanoribbons: Magnetic Quantum Crystals
• Creating and probing wide-bandgap nanoribbon-like structures in a continuous metallic graphene sheet
• Graphene quantum dots probed by scanning tunneling spectroscopy and transport spectroscopy after local anodic oxidation
• Hexagonal Nanopits with the Zigzag Edge State on Graphite Surfaces Synthesized by Hydrogen-Plasma Etching
• Stability of destructive interference antiresonances in electron transport through graphene nanostructures
• Controlling edge states in the Kane-Mele model via edge chirality
• Band structure and energy level alignment of chiral graphene nanoribbons on silver surfaces
• Systematic Modulation of Charge and Spin in Graphene Nanoribbons on MgO
• Predicting magnetic edge behaviour in graphene using neural networks
• Spin and Charge Control of Topological End States in Chiral Graphene Nanoribbons on a 2D Ferromagnet
• Wigner crystallization at graphene edges
• Insights into electronic and transport properties of phosphorene nanorings in two perpendicular directions: Effects of circular and elliptical external potentials
• Particle-hole symmetry broken solutions in graphene nanoribbons: a multi-orbital, mean-field perspective
• Optical Properties of Chiral Graphene Nanoribbons: a First Principal Study
• Modulated Dirac bands and integer hopping ratios in a honeycomb lattice of phenalenyl-tessellation molecules