论文标题
通过Fe兴奋剂来调整强相关的抗fiferromagnet Mn $ _3 $ sn中的拓扑特性
Tuning of topological properties in the strongly correlated antiferromagnet Mn$_3$Sn via Fe doping
论文作者
论文摘要
物质的磁性和电子特性之间的强相关性引起了各种外来现象，例如异常的霍尔效应（AHE），拓扑厅效应（The）和Skyrmion晶格。在这里，我们报告了Mn $ _ {3- \ it {x}} $ fe $ _ {\ it {x}} $ sn单晶体（$ \ it {x} $ = 0、0.25和0.35）的电子，磁性和拓扑特性。通过Fe掺杂，低温磁性特性已显着改变。最重要的是，我们观察到，由Fe掺杂与低温下的竞争磁相互作用诱导的大型单轴磁晶各向异性产生了非平凡的自旋纹理，从而在低温下在掺杂的系统中产生了巨大的拓扑结构效应。我们的研究进一步表明，Mn $ _ {3- \ it {x}} $ fe $ _ {\ it {x}} $ sn的拓扑特性对Fe兴奋剂非常敏感。
Magnetic topological materials, in which strong correlations between magnetic and electronic properties of matter, give rise to various exotic phenomena such as anomalous Hall effect (AHE), topological Hall effect (THE), and skyrmion lattice. Here, we report on the electronic, magnetic, and topological properties of Mn$_{3-\it{x}}$Fe$_{\it{x}}$Sn single crystals ($\it{x}$=0, 0.25, and 0.35). Low temperature magnetic properties have been significantly 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 produce nontrivial spin-texture, leading to large topological Hall effect in the doped systems at low temperatures. Our studies further show that the topological properties of Mn$_{3-\it{x}}$Fe$_{\it{x}}$Sn are very sensitive to the Fe doping.
