Orbital magnetoelectric effect in zigzag nanoribbons of p-band systems

Abstract

Profiles of the spin and orbital angular momentum accumulations induced by a longitudinally applied electric field are explored in nanoribbons of $p$-band systems with a honeycomb lattice. We show that nanoribbons with zigzag borders can exhibit orbital magnetoelectric effects. More specifically, we have found that purely orbital magnetization oriented perpendicularly to the ribbon may be induced in these systems by means of the external electric field, when sublattice symmetry is broken. The effect is rather general and may occur in other multi-orbital materials.

10 pages, 4 figures

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• Orbital angular momentum of Bloch electrons: equilibrium formulation, magneto-electric phenomena, and the orbital Hall effect
• Multifarious skyrmion phases on a trilayer triangular lattice
• Orbital magnetoelectric effect in nanoribbons of transition metal dichalcogenides
• Spin and orbital Edelstein effect in a bilayer system with Rashba interaction
• Orbitronics in Two-dimensional Materials
• Square skyrmion crystal in centrosymmetric systems with locally inversion-asymmetric layers
• Non-conservation of the valley density and its implications for the observation of the valley Hall effect
• Ultrathin films of black phosphorus as suitable platforms for unambiguous observation of the orbital Hall effect
• Controlling the orbital Hall effect in gapped bilayer graphene in the terahertz regime
• Intrinsic torque on the orbital angular momentum in an electric field
• Orbital Gravito-Magnetoelectric response and Orbital magnetic quadrupole moment correction
• Orbital Edelstein effect of electronic itinerant orbital motion at edges
• Orbital Hall effect and topology on a two-dimensional triangular lattice: from bulk to edge
• Orbital Magnetization under an Electric Field and Orbital Magnetoelectric Polarizabilty for a Bilayer Chern System
• Uniform and Staggered electric axial moment in zigzag chain
• Orbital splitter effect and spatial resolution of current-induced orbital accumulation
• Orbital Hall effect from orbital magnetic moments of Bloch states: the role of a new correction term