Topological spin-plasma waves

Abstract

The surface of a topological insulator hosts Dirac electronic states with the spin-momentum locking, which constrains spin orientation perpendicular to electron momentum. As a result, collective plasma excitations in the interacting Dirac liquid manifest themselves as coupled charge- and spin-waves. Here we demonstrate that the presence of the spin component enables effective coupling between plasma waves and spin waves at interfaces between the surface of a topological insulator and insulating magnet. Moreover, the helical nature of spin-momentum locking textures provides the phase winding in the coupling between the spin and plasma waves that makes the spectrum of hybridized spin-plasma modes to be topologically nontrivial. We also show that such topological modes lead to a large thermal Hall response.

12 pages, and 3 figures, published version

References in corpus (78)

• Topological Insulators
• Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
• Non-Abelian Anyons and Topological Quantum Computation
• Quantum Spin Hall Insulator State in HgTe Quantum Wells
• Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
• Weyl and Dirac Semimetals in Three Dimensional Solids
• Experimental Observation of the Quantum Anomalous Hall Effect in a Magnetic Topological Insulator
• Majorana Fermions and a Topological Phase Transition in Semiconductor-Superconductor Heterostructures
• Helical liquids and Majorana bound states in quantum wires
• New directions in the pursuit of Majorana fermions in solid state systems
• Possible Realization of Directional Optical Waveguides in Photonic Crystals with Broken Time-Reversal Symmetry
• Novel Symmetry Classes in Mesoscopic Normal-Superconducting Hybrid Structures
• Photonic Analogue of Two-dimensional Topological Insulators and Helical One-Way Edge Transport in Bi-Anisotropic Metamaterials
• Search for Majorana fermions in superconductors
• Spin Caloritronics
• Magnetic-field-induced quantized anomalous Hall effect in intrinsic magnetic topological insulator MnBi${}_2$Te${}_4$
• Dielectric function, screening, and plasmons in 2D graphene
• Robust optical delay lines via topological protection
• Topological Crystalline Insulators in the SnTe Material Class
• Topological Acoustics
• Analogs of quantum Hall effect edge states in photonic crystals
• Dynamical polarization of graphene at finite doping
• Mott physics and band topology in materials with strong spin-orbit interaction
• High-precision realization of robust quantum anomalous Hall state in a hard ferromagnetic topological insulator
• Robust axion insulator and Chern insulator phases in a two-dimensional antiferromagnetic topological insulator
• Topological Semimetals
• Three-Dimensional Topological Insulators
• Unique thickness-dependent properties of the van der Waals interlayer antiferromagnet $\mathrm{MnB}{\mathrm{i}}_2\mathrm{T}{\mathrm{e}}_4$ films
• Theory of Thermal Hall Effect in Quantum Magnets
• Non-Abelian quantum order in spin-orbit-coupled semiconductors: The search for topological Majorana particles in solid state systems
• Theoretical prediction of rotating magnon wavepacket in ferromagnets
• Topological chiral magnonic edge mode in a magnonic crystal
• Periodic Table for Topological Bands with Non-Hermitian Bernard-LeClair Symmetries
• Magnetic modulation doping in topological insulators toward higher-temperature quantum anomalous Hall effect
• Topological phonon modes and their role in dynamic instability of microtubules
• Topological Nature of the Phonon Hall Effect
• Topological Polaritons
• Weyl Metals
• Classification of topological phonons in linear mechanical metamaterials
• Plasmonics in Dirac systems: from graphene to topological insulators
• Acoustic spin pumping as the origin of the long-range spin Seebeck effect
• Polariton $\mathbb{Z}$ Topological Insulator
• Rotational motion of magnon and thermal Hall effect
• Spin pumping with coherent elastic waves
• A first theoretical realization of honeycomb topological magnon insulator
• Magnon Polarons in the Spin Seebeck Effect
• Collective modes of a helical liquid
• Chiral spin-wave edge modes in dipolar magnetic thin films
• Above 400 K Robust Perpendicular Ferromagnetic Phase in a Topological Insulator
• Model for Topological Phononics and Phonon Diode
• Dynamics of magnetization on the topological surface
• Topological magnetoplasmon
• Thermal Hall Effect Induced by Magnon-Phonon Interactions
• Coherent elastic excitation of spin waves
• Magnon-polaron transport in magnetic insulators
• Thin-Film Magnetization Dynamics on the Surface of a Topological Insulator
• Chiral plasmons without magnetic field
• Topological Crystalline Insulators in Transition Metal Oxides
• Topological Magnon-Phonon Hybrid Excitations in Two-Dimensional Ferromagnets with Tunable Chern Numbers
• SU(3) Topology of Magnon-Phonon Hybridization in 2D Antiferromagnets
• Berry curvature in magnon-phonon hybrid systems
• Chiral Phonon Transport Induced by Topological Magnons
• Current induced magnetization reversal on the surface of a topological insulator
• Topological Magnetoelastic Excitations in Non-Collinear Antiferromagnets
• Quasiparticle Hall Transport of d-wave Superconductors in Vortex State
• Collective excitations on a surface of topological insulator
• Dissipationless Multiferroic Magnonics
• Amperean Pairing at the Surface of Topological Insulators
• Spin and Orbital Magnetic Response on the Surface of a Topological Insulator
• Magnetic Instability on the Surface of Topological Insulators
• Fluctuation-induced magnetization dynamics and criticality at the interface of a topological insulator with a magnetically ordered layer
• Magnetic field control of topological magnon-polaron bands in two-dimensional ferromagnets
• Magnon-induced superconductivity in a topological insulator coupled to ferro- and antiferromagnetic insulators
• Magnetically-defined topological edge plasmons in edgeless electron gas
• Density Waves Instability and a Skyrmion Lattice on the Surface of Strong Topological Insulators
• Topological Insulators-Based Magnetic Heterostructure
• Spin-torque resonance due to diffusive dynamics at a surface of topological insulator
• Electromagnon on the Surface of Magnetic Topological Insulator

Cited by in corpus (13)

• Plasmon-magnon interactions in two-dimensional honeycomb magnets
• Magnon-Plasmon Hybridization Mediated by Spin-Orbit Interaction in Magnetic Materials
• Electrical tuning of the magnetic properties of 2D magnets: the case of ${\mathrm{Cr}}_2{\mathrm{Ge}}_2{\mathrm{Te}}_6$
• Chiral phonons induced from spin dynamics via magnetoelastic anisotropy
• Plasmons in Z2 Topological Insulators
• Charged magnons on the surface of a topological insulator
• Giant resonant skew scattering of plasma waves in a two-dimensional electron gas
• Coupling of plasmons to the two-magnon continuum in antiferromagnets
• Weyl excitations via helicon-phonon mixing in conducting materials
• Topological Magnon-Plasmon Hybrids
• Equatorial magnetoplasma waves
• Chiral electronic network within skyrmionic lattice on topological insulator surfaces
• Hybrid collective excitations in topological superconductor/ferromagnetic insulator heterostructures