Spatial dependence of the superexchange interactions for transition-metal trimers in graphene
arXiv:1808.09343 · doi:10.1063/1.5007274
Abstract
This study examines the magnetic interactions between spatially-variable manganese and chromium trimers substituted into a graphene superlattice. Using density functional theory, we calculate the electronic band structure and magnetic populations for the determination of the electronic and magnetic properties of the system. To explore the super-exchange coupling between the transition-metal atoms, we establish the magnetic magnetic ground states through a comparison of multiple magnetic and spatial configurations. Through an analysis of the electronic and magnetic properties, we conclude that the presence of transition-metal atoms can induce a distinct magnetic moment in the surrounding carbon atoms as well as produce an RKKY-like super-exchange coupling. It hoped that these simulations can lead to the realization of spintronic applications in graphene through electronic control of the magnetic clusters.
arXiv comment6 pages, 5 Figure
References in corpus (24)
- The electronic properties of graphene
- The SIESTA method for ab initio order-N materials simulation
- Efficient index handling of multidimensional periodic boundary conditions
- Spintronics: Fundamentals and applications
- Ultrahigh electron mobility in suspended graphene
- Density functional method for nonequilibrium electron transport
- Giant Intrinsic Carrier Mobilities in Graphene and Its Bilayer
- Intrinsic and Extrinsic Performance Limits of Graphene Devices on SiO2
- Thermal properties of graphene: Fundamentals and applications
- Spintronics and Pseudospintronics in Graphene and Topological Insulators
- Dirac materials
- Hydrogen on graphene: Electronic structure, total energy, structural distortions, and magnetism from first-principles calculations
- Magnetic Correlations at Graphene Edges
- Atomic-scale control of graphene magnetism using hydrogen atoms
- Proximity-induced ferromagnetism in graphene revealed by anomalous Hall effect
- First-Principles Study of Substitutional Metal Impurities in Graphene: Structural, Electronic and Magnetic Properties
- RKKY Interaction in Graphene from Lattice Green's Function
- Exchange interaction of magnetic impurities in graphene
- Neutron Scattering and Magnetic Observables for S = 1/2 Molecular Magnets
- Magnetic Impurities in Graphene
- Spin Rotation Technique for Non-Collinear Magnetic Systems: Application to the Generalized Villain Model
- Voltage-dependent spin flip in magnetically-substituted graphene nanoribbons: Toward the realization of graphene-based spintronic devices
- Evolution of the thermodynamic properties and inelastic neutron scattering intensities for spin-1/2 antiferromagnetic quantum rings
- Proximity-induced magnetism in transition-metal substituted graphene