Three-dimensional Resonant Magnetization Dynamics Unraveled by Time-Resolved Soft X-ray Laminography

Abstract

The imaging of magneto-dynamical processes has been, so far, mostly a two-dimensional business, due to the constraints of the available experimental techniques. In this manuscript, building on the recent developments of soft X-ray magnetic laminography, we present an experimental setup where magneto-dynamical processes can be resolved in all three spatial dimensions and in time, with the possibility to freely tune the frequency of the dynamical process. We then employ this setup to investigate the three-dimensional dynamics of two resonant magneto-dynamical modes in a CoFeB microstructure occurring at different frequencies, namely the fundamental vortex gyration mode and a magnetic field-induced domain wall excitation mode. This new technique provides much needed capabilities for the experimental investigation of the magnetization dynamics of three-dimensional magnetic systems.

References in corpus (4)

• Inertia and chiral edge modes of a skyrmion magnetic bubble
• Low-frequency vortex dynamic susceptibility and relaxation in mesoscopic ferromagnetic dots
• Harmonic oscillator model for current- and field-driven magnetic vortices
• Unidirectional sub-100 ps magnetic vortex core reversal

Cited by in corpus (7)

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• Three-dimensional spin-wave dynamics, localization and interference in a synthetic antiferromagnet
• Nonlinear dynamics of skyrmion strings
• Nanoscale Domain Wall Dynamics in Micromagnetic Structures with Weak Perpendicular Anisotropy
• Soft x-ray ptychography with SOPHIE: Guide and instrumentation
• 3D Imaging of Magnetic Domains in Nd2Fe14B using Scanning Hard X-Ray Nanotomography
• Coherent X-ray Imaging of Stochastic Dynamics