Giant topological Hall effect in centrosymmetric tetragonal Mn2−xZnxSb
Giant topological Hall effect in centrosymmetric tetragonal Mn2−xZnxSb
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DOI：
10.1103/physrevb.104.174419
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发表时间：
2021-11
影响因子：
3.7
通讯作者：
Md Rafique Un Nabi;A. Wegner;Fei Wang;Yanglin Zhu;Yingdong Guan;A. Fereidouni;K. Pandey;R. Basnet-R
中科院分区：
文献类型：
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作者：
Md Rafique Un Nabi;A. Wegner;Fei Wang;Yanglin Zhu;Yingdong Guan;A. Fereidouni;K. Pandey;R. Basnet-R
拓扑磁性通常出现在非中心对称化合物或具有几何阻挫的化合物中。在这里，我们报告了中心对称的四重金属Mn 2 −xZnxSb中通过Zn取代的磁性的有效调谐。磁性被发现是紧密耦合的输运性质，引起一个非常大的拓扑霍尔效应与微调的锌含量，甚至持续到高温（10250 K）。进一步的磁熵分析表明，拓扑霍尔效应可能与拓扑磁性有关。我们的发现表明Mn 2 −xZnxSb是中心对称四元磁拓扑系统的候选材料，为研究和调整自旋织构以及开发近室温自旋器件提供了机会。1 ar X iv：2 11 2. 00 80 5v 1 [connd-m at .m tr lsc i] 1 D ec 2 02 1
Topological magnetism typically appear in non-centrosymmetric compounds or compounds with geometric frustration. Here, we report the effective tuning of magnetism in centrosymmetric tetragonal Mn2−xZnxSb by Zn substitution. The magnetism is found to be closely coupled to the transport properties, giving rise to a very large topological hall effect with fine tuning of Zn content, which even persists to high temperature (∼ 250 K). The further magnetoentropic analysis suggests that the topological hall effect is possibly associated with topological magnetism. Our finding suggests Mn2−xZnxSb is a candidate material for centrosymmetric tetragonal topological magnetic system, offers opportunities for studying and tuning spin textures and developing near room temperature spin-based devices. 1 ar X iv :2 11 2. 00 80 5v 1 [ co nd -m at .m tr lsc i] 1 D ec 2 02 1