Temperature dependence of the magnon-phonon interaction in high overtone bulk acoustic resonator-ferromagnetic thin film hybrids
arXiv:2311.16725 · doi:10.1103/PhysRevApplied.21.034032
Abstract
Tailored magnon-phonon hybrid systems, where high overtone bulk acoustic resonators couple resonantly to the magnonic mode of a ferromagnetic thin film, are considered optimal for the creation of acoustic phonons with a defined circular polarization. This class of devices is therefore ideal for the investigation of phonon propagation properties and assessing their capacity to transport angular momentum in the classical and potentially even in the quantum regime. Here, we study the coupling between the magnons in a ferromagnetic \ch{Co25Fe75} thin film and the transverse acoustic phonons in a bulk acoustic wave resonators formed by the sapphire substrate onto which the film is deposited. Using broadband ferromagnetic resonance experiments as a function of temperature, we investigate the strength of the coherent magnon-phonon interaction and the individual damping rates of the magnons and phonons participating in the process. This demonstrates that this coupled magnon-phonon system can reach a cooperativity at cryogenic temperatures. Our experiments also showcase the potential of strongly coupled magnon-phonon systems for strain sensing applications.
arXiv comment12 pages, 8 figures
References in corpus (47)
- Strongly coupled magnons and cavity microwave photons
- Hybrid quantum systems based on magnonics
- Acoustically driven ferromagnetic resonance
- Ultra-low magnetic damping of a metallic ferromagnet
- Identification of the dominant precession damping mechanism in Fe, Co, and Ni by first-principles calculations
- Surface Acoustic Wave-Driven Ferromagnetic Resonance in Nickel Thin Films: Theory and Experiment
- Acoustic spin pumping as the origin of the long-range spin Seebeck effect
- Spin pumping with coherent elastic waves
- Magnon Polarons in the Spin Seebeck Effect
- Experimental Investigation of Temperature-Dependent Gilbert Damping in Permalloy Thin Films
- Coherent long-range transfer of angular momentum between magnon Kittel modes by phonons
- Voltage controlled inversion of magnetic anisotropy in a ferromagnetic thin film at room temperature
- Dynamical Backaction Magnomechanics
- Spin Insulatronics
- Surface acoustic wave driven ferromagnetic resonance in (Ga,Mn)(As,P) epilayers
- Magnon-polaron transport in magnetic insulators
- Nonreciprocal Dzyaloshinskii-Moriya magnetoacoustic waves
- Increased low-temperature damping in yttrium iron garnet thin films
- Strong coupling-enabled broadband non-reciprocity
- Temperature dependent magnetic damping of yttrium iron garnet spheres
- Irreversible magnetization switching using surface acoustic waves
- Damping of magnetization dynamics by phonon pumping
- Epitaxial bulk acoustic wave resonators as highly coherent multi-phonon sources for quantum acoustodynamics
- Magnetic properties in ultra-thin 3d transition metal alloys II: Experimental verification of quantitative theories of damping and spin-pumping
- Magnetic properties of ultra-thin 3d transition-metal binary alloys I: spin and orbital moments, anisotropy, and confirmation of Slater-Pauling behavior
- Cavity magnomechanics with surface acoustic waves
- Relaxation Mechanism for Ordered Magnetic Materials
- Gilbert damping of magnetostatic modes in a yttrium iron garnet sphere
- Thickness-Dependent Magnetoelasticity and its Effects on Perpendicular Magnetic Anisotropy in Ta|CoFeB|MgO Thin Films
- Dynamics of magnetization coupled to a thermal bath of elastic modes
- Symmetry of the Magnetoelastic Interaction of Rayleigh and Shear Horizontal Magnetoacoustic Waves in Nickel Thin Films on LiTaO
- Acoustic parametric pumping of spin waves
- Bright and dark states of two distant macrospins strongly coupled by phonons
- High Spin-Wave Propagation Length Consistent with Low Damping in a Metallic Ferromagnet
- Temperature-dependent spin-transport and current-induced torques in superconductor/ferromagnet heterostructures
- Optimal broad-band frequency conversion via a magnomechanical transducer
- Design of an optomagnonic crystal: towards optimal magnon-photon mode matching at the microscale
- Magnon polarons in the spin Peltier effect
- Optomagnonics in dispersive media: magnon-photon coupling enhancement at the epsilon-near-zero frequency
- Dynamic Magnetoelastic Boundary Conditions and the Pumping of Phonons
- Magnon-polaron excitations in the noncollinear antiferromagnet MnGe
- Protocol for generating an arbitrary quantum state of the magnetization in cavity magnonics
- Enhanced voltage-controlled magnetic anisotropy via magneto-elasticity in FePt/MgO(001)
- Optimizing the magnon-phonon cooperativity in planar geometries
- Chiral phonons and phononic birefringence in ferromagnetic metal - bulk acoustic resonator hybrids
- Current Control of Magnetic Anisotropy via Stress in a Ferromagnetic Metal Waveguide
- 180-degree phase shift of magnetoelastic waves observed by phase-resolved spin-wave tomography