Journal Article

FZJ-2017-01257

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Lorentz microscopy and off-axis electron holography of magnetic skyrmions in FeGe

Kovács, A. (Corresponding author)FZJ* ; Li, Z.-A. ; Shibata, K. ; Dunin-Borkowski, R.FZJ*

2016
Akadémiai Kiadó Budapest

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Please use a persistent id in citations: http://hdl.handle.net/2128/14477  doi:10.1556/2051.2016.00037

Abstract: Magnetic skyrmions are vortex-like spin structures that are of great interest scientifically and for applications in low-power magnetic memories. The nanometer size and complex spin structure require high-resolution and quantitative experimental methods to study the physical properties of skyrmions. Here, we illustrate how Lorentz TEM and off-axis electron holography can be used to study the spin textures of magnetic skyrmions in the noncentrosymmetric B20-type helimagnet FeGe as a function of temperature and applied magnetic field. By reversing the magnetic field inside the microscope, the switching mechanism of the skyrmion lattice at 240 K is followed, showing a transition of the skyrmion lattice to the helical structure before the anti-skyrmion lattice is formed.

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Contributing Institute(s):

1. Physik Nanoskaliger Systeme (ER-C-1)

Research Program(s):

1. 143 - Controlling Configuration-Based Phenomena (POF3-143) (POF3-143)

Appears in the scientific report 2017

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