Tuning of topological properties in the strongly correlated antiferromagnet Mn3Sn via Fe doping

Article

关键词: WEAK FERROMAGNETISM;    MAGNETIC-STRUCTURE;    SKYRMION LATTICE;    SPIN STRUCTURE;    NEUTRON;   

DOI  :  10.1103/PhysRevB.106.144429

来源: SCIE

【 摘 要 】

Magnetic topological materials, in which strong correlations between magnetic and electronic properties of matter, give rise to various exotic phenomena such as the anomalous Hall effect (AHE), topological Hall effect (THE), and skyrmion lattice. Here, we report on the electronic, magnetic, and topological properties of Mn3-xFexSn single crystals (x = 0, 0.25, and 0.35). Low-temperature magnetic properties have been signifi-cantly changed with Fe doping. Most importantly, we observe that large uniaxial magnetocrystalline anisotropy that is induced by the Fe doping in combination with competing magnetic interactions at low temperature pro-duce nontrivial spin texture, leading to a large topological Hall effect in the doped systems at low temperatures. Our studies further show that the topological properties of Mn3-xFexSn are very sensitive to the Fe doping.

【 授权许可】

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