Magnon-polarons in van der Waals antiferromagnet FePS3

Abstract

The hybridization of magnons (spin waves) with phonons, if sufficiently strong and comprising long wavelength excitations, may offer a new playground when manipulating the magnetically ordered systems with light. Applying a magnetic field to a quasi-2D antiferromagnet, FePS3, we tune the magnon-gap excitation towards coincidence with the initially lower-in-energy phonon modes. Hybrid magnon-phonon modes, the magnon polarons are unveiled with demonstration of a pronounced avoided crossing between the otherwise bare magnon and phonon excitations. The magnon polarons in FePS3 are primary traced with Raman scattering experiments, but, as we show, they also couple directly to terahertz photons, what evokes their further explorations in the domain of antiferromagnetic optospintronics.

10 pages, 4 figures and Supplementary Materials, to be published in Phys. Rev. B

References in corpus (12)

• Magnetic 2D materials and heterostructures
• Ising-Type Magnetic Ordering in Atomically Thin FePS3
• Perspective: Ultrafast magnetism and THz spintronics
• The 2014 Magnetism Roadmap
• Magnon Polarons in the Spin Seebeck Effect
• Magnon-phonon interactions in magnetic insulators
• Magnon-phonon interactions in magnon spintronics
• Direct observation of magnon-phonon coupling in yttrium iron garnet
• Observation of magnon-polarons in a uniaxial antiferromagnetic insulator
• Evidence for biquadratic exchange in the quasi-two-dimensional antiferromagnet FePS${}_3$
• Magnon-polarons in cubic collinear Antiferromagnets
• Magnon-polaron excitations in the noncollinear antiferromagnet Mn${}_3$Ge

Cited by in corpus (31)

• Tunable Exciton-Hybridized Magnon Interactions in a Layered Semiconductor
• Chirality selective magnon-phonon hybridization and magnon-induced chiral phonons in a layered zigzag antiferromagnet
• Terahertz field-induced metastable magnetization near criticality in FePS3
• Spin Dynamics in van der Waals Magnetic Systems
• Giant effective magnetic moments of chiral phonons from orbit-lattice coupling
• High pressure tuning of magnon-polarons in the layered antiferromagnet FePS${}_3$
• Dynamical criticality of spin-shear coupling in van der Waals antiferromagnets
• Tunable topological magnon-polaron states and anomalous Hall phenomena in two-dimensional ferromagnetic insulators
• Giant spin Nernst effect in a two-dimensional antiferromagnet due to magnetoelastic coupling-induced gaps and interband transitions between magnon-like bands
• On-site and inter-site Hubbard corrections in magnetic monolayers: The case of FePS${}_3$ and CrI${}_3$
• Identifying band structure changes of FePS3 across the antiferromagnetic phase transition
• High-angular momentum excitations in collinear antiferromagnet FePS${}_3$
• Effect of biquadratic magnetic exchange interaction in the 2D antiferromagnets MPS_3 (M = Mn, Fe, Co, Ni)
• Terahertz Magnetic and Lattice Excitations in van der Waals Ferromagnet VI3
• Electron Spin Resonance Spectroscopy on Magnetic Van der Waals Compounds
• Spatially resolved optical spectroscopy in extreme environment of low temperature, high magnetic fields and high pressure
• Hybridized magnonic materials for THz frequency applications
• Time-domain study of coupled collective excitations in quantum materials
• Manipulating Spin-Lattice Coupling in Layered Magnetic Topological Insulator Heterostructure $via$ Interface Engineering
• Transverse and longitudinal magnons in strongly anisotropic antiferromagnet FePSe3
• Terahertz Control of Linear and Nonlinear Magno-Phononics
• Spin-phonon dispersion in magnetic materials
• Topological magnon-polaron transport in a bilayer van der Waals magnet
• Exploration of magnetoelastic deformations in spin-chain compound CuBr${}_2$
• Hybridization of terahertz phonons and magnons in disparate and spatially-separated material specimens
• Magnetodielectric Properties in Two Dimensional Magnetic Insulators
• Probing the band structure of the strongly correlated antiferromagnet NiPS3 across its phase transition
• Dynamical Orbital Angular Momentum Induced by Circularly Polarized Phonons
• Magnetic field tuning of modulated magnetic orders in CrOCl at the two-dimensional limit
• Coupling of magnetic and lattice collective excitations in the 2D van der Waals antiferromagnet FePS${}_3$
• Atomically Resolved Acoustic Dynamics Coupled with Magnetic Order in a van der Waals Antiferromagnet