Rare Earth Engineering in RMn6Sn6 (R=Gd-Tm, Lu) Topological Kagome Magnets

Wenlong Ma, Xitong Xu, Jia Xin Yin, Hui Yang, Huibin Zhou, Zi Jia Cheng, Yuqing Huang, Zhe Qu, Fa Wang, M. Zahid Hasan, Shuang Jia

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Exploration of the topological quantum materials with electron correlation is at the frontier of physics, as the strong interaction may give rise to new topological phases and transitions. Here we report that a family of kagome magnets RMn6Sn6 manifest the quantum transport properties analogical to those in the quantum-limit Chern magnet TbMn6Sn6. The topological transport in the family, including quantum oscillations with nontrivial Berry phase and large anomalous Hall effect arising from Berry curvature field, points to the existence of Chern gapped Dirac fermions. Our observation demonstrates a close relationship between rare-earth magnetism and topological electron structure, indicating the rare-earth elements can effectively engineer the Chern quantum phase in kagome magnets.

Original languageEnglish (US)
Article number246602
JournalPhysical review letters
Volume126
Issue number24
DOIs
StatePublished - Jun 18 2021

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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