2019/06/19 by Kelly J. Neubauer, Qi Wang, Qiangwei Yin +9 · 1 citation
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Antiferromagnetism #Frustration #Hall effect #Heusler alloys: electronic and magnetic properties #Lattice (music) #Magnetic structure #Phase diagram #Skyrmion #Spin structure #Topological Materials and Phenomena #Topology (electrical circuits) #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.103.014416
published as Phys. Rev. B 103, 014416 (2021) · 28 pages, 9 figures
openalex created_date 2019/06/27 · arxiv created 2020/07/23 · openalex publication_date 2021/01/12 · arxiv updated 2021/01/26 · openalex updated_date 2026/08/06
Geometric frustration in the kagome lattice makes it a great host for the flat electronic band, nontrivial topological properties, and novel magnetism. Here, we use magnetotransport measurements to map out the field-temperature phase diagram of the centrosymmetric YMn6Sn6 with a Mn kagome lattice and show that the system exhibits the topological Hall effect (THE) with an in-plane applied magnetic field around 240 K. In addition, our neutron diffraction results demonstrate that the observed THE cannot arise from a magnetic skyrmion lattice, but instead from an in-plane field-induced double-fan spin structure with c-axis components. This paper provides a platform to understand the influence of a field-induced novel magnetic structure on magnetoelectric response in topological kagome metals.