Co-existing magnetization reversal mechanisms in shakti spin ice systems
arXiv:2503.04237 · doi:10.1103/pr2y-dfbd
Abstract
The switching mechanisms in artificial spin ice systems are investigated with focus on shakti and modified shakti lattices. Minimum energy paths are calculated using the geodesic nudged elastic band (GNEB) method implemented with a micromagnetic description of the system, including the internal magnetic structure of the islands and edge modulations. Two switching mechanisms, uniform magnetization rotation and domain wall formation, are found to have comparable activation energy. The preference for one over the other depends strongly on the saturation magnetization and the magnetic ordering of neighboring islands. Surprisingly, these mechanisms can coexist, leading to an enhanced probability of magnetization reversal. These results provide valuable insight that can help control internal magnetization switching processes in spin ice systems and help predict their thermodynamic properties.
9 pages, 6 figures
References in corpus (22)
- The design and verification of Mumax3
- Artificial "spin ice" in a geometrically frustrated lattice of nanoscale ferromagnetic islands
- Method for finding mechanism and activation energy of magnetic transitions, applied to skyrmion and antivortex annihilation
- Reconfigurable Training and Reservoir Computing in an Artificial Spin-Vortex Ice via Spin-Wave Fingerprinting
- Unhappy Vertices in Artificial Spin Ice: Degeneracy from Vertex-Frustration
- The importance of the weak: Interaction modifiers in artificial spin ices
- Topological frustration of artificial spin ice
- Reconfigurable magnonic mode-hybridisation and spectral control in a bicomponent artificial spin ice
- Qubit spin ice
- Degeneracy and criticality from emergent frustration in artificial spin ice
- Sculpting the Spin-Wave Response of Artificial Spin Ice via Microstate Selection
- A new look on the two-dimensional Ising model: thermal artificial spins
- A Micromagnetic Study of Magnetization Reversal in Ferromagnetic Nanorings
- Magnetic order and energy-scale hierarchy in artificial spin ice
- Stability of Hopfions in Bulk Magnets with Competing Exchange Interactions
- Tailed skyrmions -- an obscure branch of magnetic solitons
- Heliknoton in a film of cubic chiral magnet
- The effect of confinement on thermally induced fluctuations in nanomagnets
- Multiple energy-scales in vertex-frustrated mesospin systems
- Thermal generation of droplet soliton in chiral magnet
- Thermal excitations within and among mesospins in artificial spin ice
- Texture fluctuations and emergent dynamics in coupled nanomagnets