Impurity States and Indirect Exchange Interaction in Irradiated Graphene
arXiv:2203.00805 · doi:10.1103/PhysRevB.106.075424
Abstract
We theoretically investigate the impurity levels and exchange interaction between magnetic impurities in graphene driven by an off-resonant circularly polarized light field. Our analysis captures the non-perturbative effects resulting from scattering with magnetic impurities with a strong onsite potential. Under irradiation, a dynamical band gap opens up at the Dirac point, allowing impurity levels to exist inside the gap. These impurity levels are shown to give rise to a resonance feature in the exchange energy for impurities located either at the same or different sublattices. The exchange interaction also shows a wider spatial range of antiferromagnetic behavior due to irradiation. Our work demonstrates that the exchange energy of magnetic impurities in graphene is extensively tunable by light irradiation in the presence of strong potential scattering.
arXiv comment10 pages, 7 figures
References in corpus (35)
- Graphene Spintronics
- Magnetism in Graphene Induced by Single-Atom Defects
- Electronic Properties of Disordered Two-Dimensional Carbon
- Emergence of magnetism in graphene materials and nanostructures
- Hydrogen on graphene: Electronic structure, total energy, structural distortions, and magnetism from first-principles calculations
- Nonequilibrium dynamical mean-field theory and its applications
- Atomic-scale control of graphene magnetism using hydrogen atoms
- Nonthermal pathways to ultrafast control in quantum materials
- Colloquium: Spintronics in graphene and other two-dimensional materials
- RKKY in half-filled bipartite lattices: graphene as an example
- Ultrafast and reversible control of the exchange interaction in Mott insulators
- Impurity States in Graphene
- Impurity-induced states on the surface of 3D topological insulators
- RKKY Interaction in Graphene from Lattice Green's Function
- RKKY coupling in graphene
- Theory of Scanning Tunneling Microscopy Probe of Impurity States in a D-Wave Superconductor
- Viewpoint: Opportunities and challenges of two-dimensional magnetic van der Waals materials: magnetic graphene?
- Long-Range Interaction Between Adatoms in Graphene
- Electronic structure of the substitutional vacancy in graphene: Density-functional and Green's function studies
- Analytical Expression for the RKKY Interaction in Doped Graphene
- Indirect Exchange and Ruderman-Kittel-Kasuya-Yosida (RKKY) Interactions in Magnetically-Doped Graphene
- Dynamical polarizability of graphene irradiated by circularly polarized ac electric fields
- Impurity Scattering and Mott's Formula in Graphene
- Ultrafast Quenching of the Exchange Interaction in a Mott Insulator
- Manipulating magnetism by ultrafast control of the exchange interaction
- Density of States of a d-wave Superconductor in the Presence of Strong Impurity Scatterers: a Non Perturbative Result
- Orbital Floquet Engineering of Exchange Interactions in Magnetic Materials
- Non-Equilibrium RKKY Interaction in Irradiated Graphene
- Non-Linear Spin Susceptibility in Topological Insulators
- Attraction-repulsion transition in the interaction of adatoms and vacancies in graphene
- Obtaining Majorana and other boundary modes from the metamorphosis of impurity-induced states: exact solutions via T-matrix
- Long-range exchange interaction between magnetic impurities in graphene
- Ferromagnetism in chiral multilayer 2D semimetals
- Potential and spin-exchange interaction between Anderson impurities in graphene
- Highly tunable magnetic coupling in ultrathin topological insulator films due to impurity resonances