Regensburg 2019 – scientific programme
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DS: Fachverband Dünne Schichten
DS 14: Poster
DS 14.27: Poster
Tuesday, April 2, 2019, 17:00–20:00, Poster E
B20-type FeGe on Ge (100) grown by pulse laser melting — •Zichao Li1,2, Yufang Xie1,2, Mao Wang1,2, Chi Xu1,2, Ye Yuan1,2, Slawomir Prucnal1, and Shengqiang Zhou1 — 1Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstrasse 400, D-01328 Dresden, Germany — 2Technische Universität Dresden, D-01062 Dresden, Germany
B20-type FeGe is one of the noncentrosymmetric materials hosting skymions. Due to its nanoscale helical spin textures that only need extremely low spin-polarized currents to be moved, this material is one promising candidate for ultra-dense information storage and spintronics. In this work, we propose a simple method to prepare B20-type FeGe, which only includes a room temperature deposition of 10 nm Fe layer on Ge (100) substrates and a following process by pulse laser melting. The formation of B20 phase is confirmed by X-ray Diffraction With a preferential orientation of FeGe(111)//Ge(001). The FeGe samples show superparamagnetic properties and their blocking temperatures increase with increasing laser power. We conclude that this phenomenon is due to the increased grain size of B20 FeGe phase with increasing laser energy . This work provides a path of obtaining different B20-type transition metal germinides which can be magnetic-Skyrmion hosting materials for spintronics.