A streamlined approach to mapping the magnetic induction of skyrmionic materials
arXiv:1608.06000 · doi:10.1016/j.ultramic.2017.02.004
Abstract
Recently, Lorentz transmission electron microscopy (LTEM) has helped researchers advance the emerging field of magnetic skyrmions. These magnetic quasi-particles, composed of topologically non-trivial magnetization textures, have a large potential for application as information carriers in low-power memory and logic devices. LTEM is one of a very few techniques for direct real space imaging of magnetic features at the nanoscale. For Fresnel-contrast LTEM, the transport of intensity equation (TIE) is the tool of choice for quantitative reconstruction of the local magnetic induction through the sample thickness. Typically this analysis requires collection of at least three images.Here we show that for uniform thin magnetic films which includes many skyrmionic samples, the magnetic induction can be quantitatively determined from a single defocused image using a simplified TIE approach.
References in corpus (10)
- Skyrmion Lattice in a Chiral Magnet
- Observation of room temperature magnetic skyrmions and their current-driven dynamics in ultrathin Co films
- Skyrmion Lattice in a Doped Semiconductor
- Skyrmion-skyrmion and skyrmion-edge repulsions in skyrmion-based racetrack memory
- Ultrafast transmission electron microscopy using a laser-driven field emitter: femtosecond resolution with a high coherence electron beam
- A centrosymmetric hexagonal magnet with superstable biskyrmion magnetic nanodomains in a wide temperature range of 100K to 340K
- Tailoring magnetic energies to form dipole skyrmions and skyrmion lattices
- Thermally stable magnetic skyrmions in multilayer synthetic antiferromagnetic racetracks
- Synthesizing Skyrmion Molecules in Fe-Gd Thin Films
- Transport of Intensity Phase Retrieval of Arbitrary Wave Fields Including Vortices
Cited by in corpus (5)
- A transmission electron microscope study of Néel skyrmion magnetic textures in multilayer thin film systems with large interfacial chiral interaction
- Room-temperature observation and current control of skyrmions in Pt/Co/Os/Pt thin films
- Mechanisms of skyrmion and skyrmion crystal formation from the conical phase
- Quantitative imaging of hybrid chiral spin textures in magnetic multilayer systems by Lorentz microscopy
- Confinement of Skyrmions in Nanoscale FeGe Device-like Structures