Magnetic field control of topological magnon-polaron bands in two-dimensional ferromagnets

Abstract

We theoretically study magnon-phonon hybrid excitations in a square lattice ferromagnet subjected to a magnetic field by varying the field direction. The bulk bands of hybrid excitations, which are referred to as magnon-polarons, are investigated by considering all three phonon modes: vertical phonon, transverse phonon, and longitudinal phonon. We show that the topological proprieties of three hybridizations are different in terms of the Berry curvature and the Chern numbers. We also find that the topological properties of the bands can be controlled by changing the direction of the magnetic field, exhibiting one or more topological phase transitions. The dependence of thermal Hall conductivity as a function of magnetic field direction is proposed as an experiment probe of our theoretical results.

References in corpus (39)

• Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
• $Z_2$ Topological Order and the Quantum Spin Hall Effect
• Layer-dependent Ferromagnetism in a van der Waals Crystal down to the Monolayer Limit
• Berry Phase Effects on Electronic Properties
• Weyl and Dirac Semimetals in Three Dimensional Solids
• Topological Field Theory of Time-Reversal Invariant Insulators
• Gate-tunable Room-temperature Ferromagnetism in Two-dimensional Fe${}_3$GeTe${}_2$
• Dissipationless Quantum Spin Current at Room Temperature
• Phonons in single and few-layer MoS2 and WS2
• Wave-packet dynamics in slowly perturbed crystals: Gradient corrections and Berry-phase effects
• Topological quantization of the spin Hall effect in two-dimensional paramagnetic semiconductors
• Topological Phononic Crystals with One-Way Elastic Edge Waves
• Topologically protected elastic waves in phononic metamaterials
• Room Temperature Intrinsic Ferromagnetism in Epitaxial Manganese Selenide Films in the Monolayer Limit
• Robust Intrinsic Ferromagnetism and Half Semiconductivity in Stable Two-Dimensional Single-Layer Chromium Trihalides
• Observation of the Magnon Hall Effect
• On the origin of magnetic anisotropy in two dimensional CrI${}_3$
• Theory of Thermal Hall Effect in Quantum Magnets
• Intrinsic vs. extrinsic anomalous Hall effect in ferromagnets
• The phonon dispersion of graphite by inelastic x-ray scattering
• Theoretical prediction of rotating magnon wavepacket in ferromagnets
• Topological chiral magnonic edge mode in a magnonic crystal
• Phonon Transport in Graphene
• Topological Nature of the Phonon Hall Effect
• Anomalous Hall effect in 2D Dirac band: link between Kubo-Streda formula and semiclassical Boltzmann equation approach
• The thermal Hall effect of spin excitations in a Kagome magnet
• Rotational motion of magnon and thermal Hall effect
• Magnon Polarons in the Spin Seebeck Effect
• Effect of lattice geometry on magnon Hall effect in ferromagnetic insulators
• Topological honeycomb magnon Hall effect: A calculation of thermal Hall conductivity of magnetic spin excitations
• Thermal Hall Effect Induced by Magnon-Phonon Interactions
• Topological Magnon-Phonon Hybrid Excitations in Two-Dimensional Ferromagnets with Tunable Chern Numbers
• Emergence of nontrivial magnetic excitations in a spin liquid state of kagome volborthite
• Thermal Hall effect, spin Nernst effect, and spin density induced by thermal gradient in collinear ferrimagnets from magnon-phonon interaction
• SU(3) Topology of Magnon-Phonon Hybridization in 2D Antiferromagnets
• Berry curvature in magnon-phonon hybrid systems
• SU(3) Spin-Orbit Coupling in Systems of Ultracold Atoms
• Topological Magnetoelastic Excitations in Non-Collinear Antiferromagnets
• Magnon Broadening Effect by Magnon-Phonon Interaction in Colossal Magnetoresistance Manganites

Cited by in corpus (13)

• Tunable topological magnon-polaron states and anomalous Hall phenomena in two-dimensional ferromagnetic insulators
• Topological spin-plasma waves
• Giant spin Nernst effect in a two-dimensional antiferromagnet due to magnetoelastic coupling-induced gaps and interband transitions between magnon-like bands
• Topological magnon gap engineering in van der Waals CrI${}_3$ ferromagnets
• Magnon Polarons induced by a magnetic field gradient
• Weyl-triplons in SrCu2(BO3)2
• Berry curvature for coupled waves of magnons and electromagnetic waves
• Magnon dispersion and spin transport in CrCl${}_3$ bilayers under different strain-induced magnetic states
• Topological magnon-polarons in honeycomb antiferromagnets with spin-flop transition
• Topological magnon-polaron transport in a bilayer van der Waals magnet
• Spin and lattice dynamics of a van der Waals antiferromagnet MnPSe${}_3$
• Weyl excitations via helicon-phonon mixing in conducting materials
• Topological excitations in quasi two-dimensional quantum magnets with weak interlayer interactions