Ground State Magnetic structure of Hexagonal-(Mn0.82Fe0.18)3.2Ge Weyl Semimetal
The aim of the proposal is to determine the ground state magnetic structure of the (Mn0.82Fe0.18)3.2Ge. 17-22% Fe doped Mn3Ge has gained special attention due to multiple magnetic transitions below room temperature which arises due to the competing FM and AFM interactions [9-11]. In contrast to the parent compound Mn3Ge, we have observed (a) strongly field dependent anomalous Hall effect and, (b) the anomalous Hall effect is present only in a limited temperature range (above 100 K). Since the anomalous Hall effect and magnetic structure of the Mn moments are directly correlated, an accurate magnetic structure determination is urgently needed. Our proposed polarized neutron diffraction will definitely shed light on the correlation between the magnetic structure and the anomalous Hall effect: a prerequisite for the understanding of the Weyl semimetal.
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Venus Rai; BRUECKEL Thomas; JANA Subhadip; NANDI Shibabrata; RODRIGUEZ VELAMAZAN Jose Alberto and STUNAULT Anne. (2021). Ground State Magnetic structure of Hexagonal-(Mn0.82Fe0.18)3.2Ge Weyl Semimetal. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-54-361
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