TY  - JOUR
AU  - Kovács, András
AU  - Li, Zi-An
AU  - Shibata, Kiyou
AU  - Dunin-Borkowski, Rafal
TI  - Lorentz microscopy and off-axis electron holography of magnetic skyrmions in FeGe
JO  - Resolution and discovery
VL  - 1
IS  - 1
SN  - 2498-8707
CY  - Budapest
PB  - Akadémiai Kiadó
M1  - FZJ-2017-01257
SP  - 2 - 8
PY  - 2016
AB  - 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.
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1556/2051.2016.00037
UR  - https://juser.fz-juelich.de/record/827051
ER  -