Photoinduced 120-degree spin order in the Kondo-lattice model on a triangular lattice
arXiv:2202.06528 · doi:10.1103/PhysRevB.105.144422
Abstract
We theoretically predict the emergence of 120-degree spin order as a nonequilibrium steady state in the photodriven Kondo-lattice model on a triangular lattice. In the system away from the half filling with ferromagnetic ground state, the photoexcitation of conduction electrons and the photoinduced renormalization of bandwidth cause reconstruction of band structure and subsequent redistribution of the electrons through relaxations, which result in an electronic structure similar to that in the half-filled system at equilibrium, where the 120-degree spin order is stabilized. In this photoinduced 120-degree spin ordered phase, domains of different spin-ordered planes are formed, and vortices of spin chirality vectors called vortices appear at points where multiple domains meet. We also discuss favorable conditions and experimental feasibility to observe the predicted photoinduced magnetic phase transition by investigating dependencies on the light parameters (amplitude, frequency, and polarization), the electron filling, the strength of Kondo coupling, and the effects of antiferromagnetic coupling among the localized spins. Photoinduced magnetic structures proposed so far have been limited to simple collinear (anti)ferromagnetic orders or local magnetic defects in magnets. The present work paves a way to optical creation of complex noncollinear magnetisms as global nonequilibrium steady phase in photodriven systems.
arXiv comment17 pages, 11 figures, revised version, accepted for publication in Physical Review B
References in corpus (36)
- Electrodynamics of Correlated Electron Materials
- Nonequilibrium dynamical mean-field theory and its applications
- Skyrmion lattice with a giant topological Hall effect in a frustrated triangular-lattice magnet
- Dynamical control of matter-wave tunneling in periodic potentials
- Superfluid-insulator transition in a periodically driven optical lattice
- Optical skyrmions in evanescent electromagnetic fields
- Spin Oscillations in Antiferromagnetic NiO Triggered by Circularly Polarized Light
- Ultrafast and reversible control of the exchange interaction in Mott insulators
- Strange metal behavior in a pure ferromagnetic Kondo lattice
- Creation of Magnetic Skyrmion Bubble Lattices by Ultrafast Laser in Ultrathin Films
- Hidden Multiple-spin Interactions as an Origin of Spin Scalar Chiral Order in Frustrated Kondo Lattice Models
- Ultrafast generation of skyrmionic defects with vortex beams: printing laser profiles on magnets
- Magnetization Dynamics of Nanoscale Magnetic Materials: A Perspective
- Coherent destruction of tunneling, dynamic localization and the Landau-Zener formula
- Z_2-vortex ordering of the triangular-lattice Heisenberg antiferromagnet
- Optical freezing of charge motion in an organic conductor
- Manipulating magnetism by ultrafast control of the exchange interaction
- Quasiparticle relaxation dynamics in spin-density-wave and superconducting SmFeAsO_{1-x}F_{x} single crystals
- Photonic orbital angular momentum transfer and magnetic skyrmion rotation
- Ultrafast light-induced magnetization dynamics in ferromagnetic semiconductors
- Dynamical and Reversible Control of Topological Spin Textures
- Anisotropic c-f hybridization in the ferromagnetic quantum critical metal CeRhGe
- Growth Dynamics of Photoinduced Domains in Two-Dimensional Charge-Ordered Conductors Depending on Stabilization Mechanisms
- Signature of a Z_2 vortex in the dynamical correlations of the triangular-lattice Heisenberg antiferromagnet
- Double-Exchange Interaction in Optically Induced Nonequilibrium State: A Conversion from Ferromagnetic to Antiferromagnetic Structure
- Photoinduced charge and spin dynamics in strongly correlated electron systems
- Indication of Ferromagnetic Quantum Critical Point in Kondo Lattice CeRhGe
- Dynamical coupling and separation of multiple degrees of freedom in a photoexcited double-exchange system
- Topological excitations in rotating Bose-Einstein condensates with Rashba-Dresselhaus spin-orbit coupling in a two-dimensional optical lattice
- Theory of the Inverse Faraday Effect due to the Rashba Spin-Oribt Interactions: Roles of Band Dispersions and Fermi Surfaces
- Photocontrol of magnetic structure in an itinerant magnet
- Spin current as a probe of the -vortex topological transition in the classical Heisenberg antiferromagnet on the triangular lattice
- Photo-induced insulator-metal transition of a spin-electron coupled system
- Optical manipulation of magnetism in spin-charge coupled correlated electron system
- Photoinduced topological spin texture in a metallic ferromagnet
- High-Frequency Analysis of Effective Interactions and Bandwidth for Transient States after Monocycle Pulse Excitation of Extended Hubbard Model