Magnon-phonon interactions in magnetic insulators

Abstract

We address the theory of magnon-phonon interactions and compute the corresponding quasi-particle and transport lifetimes in magnetic insulators with focus on yttrium iron garnet at intermediate temperatures from anisotropy- and exchange-mediated magnon-phonon interactions, the latter being derived from the volume dependence of the Curie temperature. We find in general weak effects of phonon scattering on magnon transport and the Gilbert damping of the macrospin Kittel mode. The magnon transport lifetime differs from the quasi-particle lifetime at shorter wavelengths.

arXiv comment15 pages, 16 figures

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• Local Temperatures Out of Equilibrium
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• Confined magnetoelastic waves in thin waveguides
• Dynamical Backaction Evading Magnomechanics
• Magnon polarons in the spin Peltier effect
• Angular momentum transfer via relativistic spin-lattice coupling from first principles
• Tunable Magnonic Chern Bands and Chiral Spin Currents in Magnetic Multilayers
• Magnonic Analogue of Edelstein Effect in Antiferromagnetic Insulators
• Magnon Polarons induced by a magnetic field gradient
• Composition-tunable magnon-polaron anomalies in spin Seebeck effects in epitaxial Bi${}_x$Y${}_{3-x}$Fe${}_5$O${}_{12}$ films
• Coherent pumping of high momentum magnons by light
• Magnetic-field dependence of low-energy magnons, anisotropic heat conduction, and spontaneous relaxation of magnetic domains in the cubic helimagnet ZnCr2Se4
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• Quantum entanglement generation on magnons assisted with microwave cavities coupled to a superconducting qubit
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• Chiral phonons induced from spin dynamics via magnetoelastic anisotropy
• Magnon spin transport around the compensation magnetic field in easy-plane antiferromagnetic insulators
• Magnonics in collinear magnetic insulating systems
• Calculating spin-lattice interactions in ferro- and antiferromagnets: the role of symmetry, dimension and frustration
• Fröhlich versus Bose-Einstein Condensation in Pumped Bosonic Systems
• Polar phonons and magnetic excitations in the antiferromagnet CoF${}_2$
• Magnon-polaron formation in XXZ quantum Heisenberg chains
• Chiral magnon-polaron edge states in Heisenberg-Kitaev magnets
• Magnonic Thermal Machines
• Tunable phonon-driven magnon-magnon entanglement at room temperature
• Spin-lattice couplings in $3d$ ferromagnets: analysis from first-principles
• Interband magnon drag in ferrimagnetic insulators
• Accumulation of magnetoelastic bosons in yttrium iron garnet: kinetic theory and wave vector resolved Brillouin light scattering
• High-throughput search for topological magnon materials
• Thermal relaxation of magnons and phonons near resonance points in magnetic insulators
• Photoengineering the Magnon Spectrum in an Insulating Antiferromagnet
• Topological Magnetic Phases and Magnon-Phonon Hybridization in the Presence of Strong Dzyaloshinskii-Moriya Interaction
• Phononic enhancement and detection of hidden spin-nematicity and dynamics in quantum magnets
• Ellipticity effects on diffusive magnon spin and heat transport in easy-plane ferromagnets
• Phonon anomalies and critical scaling in the spin-$1/2$ trimer chain Na${}_2$Cu${}_3$Ge${}_4$O${}_{12}$
• An Effective Field Theory of Magneto-Elasticity
• Ultra-high frequency magnetic resonance through strain-spin coupling in perpendicular magnetic multi-layers
• The studies on phonons and magnons in (Ni80Fe20/Au/Co/Au) multilayers of different number of repetitions
• Surface acoustic wave driven acoustic spin splitter in d-wave altermagnetic thin films
• Spin Wave Dispersion of the van der Waals Antiferromagnet NiPS${}_3$
• Chiral Phonons Arising From Chirality-Selective Magnon-Phonon Coupling
• Phonon- and magnon-mediated decoherence of a magnonic qubit
• Pseudo-Goldstone mode in altermagnetic $\alpha$-MnTe: high-field electron spin resonance studies