Mode-resolved micromagnetics study of parametric spin wave excitation in thin-film disks
arXiv:2404.07561 · doi:10.1103/PhysRevB.110.064435
Abstract
We present a computational study of the parametric excitation of spin waves in thin film disks with a mode-resolved approach. The method involves projecting out the time-dependent magnetization, computed using micromagnetics simulations, onto the spatial profile of the eigenmodes that are obtained from the linearization of the equations of motion. Unlike spectral analysis in the frequency domain, the projection allows for the analysis of transient mode dynamics under parametric excitation. We apply this method to parallel pumping of quantized spin wave modes in in-plane magnetized thin-film disks, where phenomena such as frequency pulling, mutual phase locking, and higher-order magnon scattering processes are identified.
12 pages, 11 figures
References in corpus (18)
- The design and verification of Mumax3
- Recent Advances in Physical Reservoir Computing: A Review
- Roadmap on Spin-Wave Computing
- Reconfigurable Training and Reservoir Computing in an Artificial Spin-Vortex Ice via Spin-Wave Fingerprinting
- Boundary conditions for magnetization in magnetic nano-elements
- Adaptively time stepping the stochastic Landau-Lifshitz-Gilbert equation at nonzero temperature: implementation and validation in MuMax3
- Nonreciprocal spin-wave channeling along textures driven by the Dzyaloshinskii-Moriya interaction
- Reservoir computing using a spin-wave delay line active ring resonator
- Pattern recognition with a magnon-scattering reservoir
- Implementing a magnonic time-delay reservoir computer model
- The Unusual Nature of Confined Modes in a Chiral System
- Computational Micromagnetics based on Normal Modes: bridging the gap between macrospin and full spatial discretization
- A numerical exploration of signal detector arrangement in a spin-wave reservoir computing device
- Parametric generation of spin waves in nano-scaled magnonic conduits
- Complete identification of spin-wave eigenmodes excited by parametric pumping in YIG microdisks
- Comparison of measured and simulated spin-wave mode spectra of magnetic nanostructures
- Effects of Nanodots Shape and Lattice Constants on the Spin Wave Dynamics of Patterned Permalloy Dots
- Effect of magnon decays on parametrically pumped magnons