Coupled skyrmion breathing modes in synthetic ferri- and antiferromagnets

Abstract

We present micromagnetic simulations of the dynamic GHz-range resonance modes of skyrmions excited by either out-of-plane ac magnetic fields or spin torques in prototypical synthetic ferri- and antiferromagnetic trilayer structures. The observed features in the calculated power spectra exhibit a systematic dependence on the coupling strength between the individual magnetic layers and are related to pure in-phase and anti-phase breathing modes as well as to hybridizations of breathing and spin-wave modes that are characteristic for the considered circular-shaped geometry. The experimental detection of these resonant oscillation modes may provide a means for skyrmion sensing applications and for the general characterization of skyrmion states in multilayer stacks with antiferromagnetic interlayer exchange coupling.

Accepted for publication in Physical Review B

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Cited by in corpus (11)

• Breathing Modes of Skyrmion Strings in a Synthetic Antiferromagnet
• Elongated Skyrmion as Spin Torque Nano-Oscillator and Magnonic Waveguide
• Topological phase transitions and Berry-phase hysteresis in exchange-coupled nanomagnets
• Spin-Transfer-Torque Induced Spatially Nonuniform Switching in Ferrimagnets
• Structural and Magnetic Properties of Pt/Co/Mn-Based Multilayers
• Emergent Self-propulsion of Skyrmionic Matter in Synthetic Antiferromagnets
• Numerical simulation projects in micromagnetics with Jupyter
• Orthogonal Spin-Orbit Torque-Induced Deterministic Switching in NiO
• Ferrimagnetic Skyrmions in a Tetragonal Mn1.9Co0.1Sb Single Crystal at Room Temperature
• Anomalous switching pattern in the ferrimagnetic memory cell
• Dynamic Fingerprints of Synthetic Antiferromagnet Nanostructures with Interfacial Dzyaloshinskii-Moriya Interaction