Observation of mode splitting in artificial spin ice
arXiv:2102.10415 · doi:10.1063/5.0045472
Abstract
We report the dependence of the magnetization dynamics in a square artificial spin-ice lattice on the in-plane magnetic field angle. Using two complementary measurement techniques - broadband ferromagnetic resonance and micro-focused Brillouin light scattering spectroscopy - we systematically study the evolution of the lattice dynamics, both for a coherent radiofrequency excitation and an incoherent thermal excitation of spin dynamics. We observe a splitting of modes facilitated by inter-element interactions that can be controlled by the external field angle and magnitude. Detailed time-dependent micromagnetic simulations reveal that the split modes are localized in different regions of the square network. This observation suggests that it is possible to disentangle modes with different spatial profiles by tuning the external field configuration.
References in corpus (22)
- The design and verification of Mumax3
- The building blocks of magnonics
- Artificial "spin ice" in a geometrically frustrated lattice of nanoscale ferromagnetic islands
- Magnonic crystals for data processing
- Gigahertz frequency antiferromagnetic resonance and strong magnon-magnon coupling in the layered crystal CrCl3
- Spectral analysis of topological defects in an artificial spin-ice lattice
- Coherent spin pumping in a strongly coupled magnon-magnon hybrid system
- Dynamic response of an artificial square spin ice
- Dynamics of reconfigurable artificial spin ice: towards magnonic functional materials
- Tunable magnon-magnon coupling in synthetic antiferromagnets
- Reconfigurable spin wave band structure of artificial square spin ice
- Topological frustration of artificial spin ice
- Magnetization Dynamics of Topological Defects and the Spin Solid in Kagome Artificial Spin Ice
- Tailoring spin wave channels in a reconfigurable artificial spin ice
- Sculpting the Spin-Wave Response of Artificial Spin Ice via Microstate Selection
- High frequency dynamics modulated by collective magnetization reversal in artificial spin ice
- Direct Observation of Magnon Modes in Kagome Artificial Spin Ice with Topological Defects
- Emergent spin dynamics enabled by lattice interactions in a bicomponent artificial spin ice
- Spin wave dynamics in artificial anti spin-ice systems: experimental and theoretical investigations
- Angular Dependent Magnetization Dynamics of Kagome Artificial Spin Ice Incorporating Topological Defects
- Control of spin dynamics in artificial honeycomb spin-ice-based nanodisks
- Magnonic bending, phase shifting and interferometry in a 2D reconfigurable nanodisk crystal
Cited by in corpus (3)
- Dynamic coupling and spin-wave dispersions in a magnetic hybrid system made of an artificial spin-ice structure and an extended NiFe underlayer
- Mesoscopic magnetic systems: from fundamental properties to devices
- Artificial Spin Ice: A Tutorial on Design and Control of Geometry, Microstate, Magnon Dynamics & Neuromorphic Computing