Giant topological Hall effect in centrosymmetric tetragonal Mn2-xZnxSb

Md Rafique Un Nabi, Aaron Wegner, Fei Wang, Yanglin Zhu, Yingdong Guan, Arash Fereidouni, Krishna Pandey, Rabindra Basnet, Gokul Acharya, Hugh O.H. Churchill, Zhiqiang Mao, Jin Hu

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Topological magnetism typically appears in noncentrosymmetric 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 (∼250K). 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 a centrosymmetric tetragonal topological magnetic system, offering opportunities for studying and tuning spin textures and developing near room temperature spin-based devices.

Original languageEnglish (US)
Article number174419
JournalPhysical Review B
Volume104
Issue number17
DOIs
StatePublished - Nov 1 2021

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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