B20-type FeGe on Ge(100) prepared by pulsed laser melting

B20-type FeGe is one of the noncentrosymmetric materials hosting magnetic skymions. In this work, we have prepared B20-type FeGe films by pulsed laser melting of metal Fe deposited on Ge(1 0 0). The formation of the B20 phase is confirmed by X-ray diffraction. The FeGe samples show a superparamagnetic behavior and their blocking temperatures increase with increasing the pulsed laser energy density. We conclude that this phenomenon is due to the increased grain size of the B20-type FeGe with increasing laser energy density. The presented method can be used to obtain different B20-type transition metal germanides and silicides, which can be magnetic skyrmion-hosting materials for spintronics.

Automated summary

In this study, B20-type FeGe films were successfully prepared by pulsed laser melting, with X-ray diffraction confirming the formation of the B20 phase. The blocking temperatures of FeGe samples increase with increasing pulsed laser energy density, attributed to the increased grain size of B20-type FeGe. This method can be used to obtain various B20-type transition metal germanides and silicides as potential magnetic skyrmion-hosting materials for spintronics.