Comparison of conventional and Lorentz transmission electron microscopy in magnetic imaging of permanent magnets

Magnetization structures in magnetic materials are usually imaged dedicated Lorentz transmission electron microscopes. Compared to conventional microscopes, the field of objective lens at sample is removed by replacing with a below sample. While this modification critical for soft-magnetic whose state affected strong lens, we propose that not necessary permanent magnets such as Sm–Co and Nd–Fe–B. Conventional microscopes compared imaging divergent convergent domain walls Sm(Co,Fe,Cu,Zr)7.7 magnet. Both techniques provide an almost identical resolution accuracy measurement domain-wall width parameter using focal-series walls. It further demonstrated both can be utilized analyze intensity profile From this, product thickness induction extracted. These results illustrate used image comparable which make experiments significantly more accessible wider scientific community.