In-plane anisotropic magnetoresistance and planar Hall effect in off-stoichiometric single crystal Mn3Ga
We report the observation of in-plane anisotropic magnetoresistance (AMR) and planar Hall effect in our recently discovered kagome antiferromagnetic off-stoichiometric single crystal of Mn3Ga. We found that the in-plane AMR is dominated by a sixfold symmetry at low temperature due to the kagome lattice magnetocrystalline anisotropy. However, an unusual fourfold symmetry is also revealed by the angular-dependent AMR measurements, which originates from the little distortion of the crystal accompanying the slight ferromagnetic transition. Moreover, we also found a clear planar Hall effect signal in off-stoichiometric single crystal of Mn3Ga, which may be related to the chiral anomaly, one of the signatures of the magnetic Weyl fermions.
Authors
- Xuekui Xi (ORCID: https://orcid.org/0000-0002-9783-9552)
- Linxuan Song (ORCID: https://orcid.org/0000-0002-8549-0357)
- Wenhong Wang (ORCID: https://orcid.org/0000-0002-0641-3792)
- Yong‐Chang Lau (ORCID: https://orcid.org/0000-0001-6057-4733)
- Hang Li (ORCID: https://orcid.org/0000-0002-9179-3741)
- Feng Zhou
- Jie Chen (ORCID: https://orcid.org/0009-0007-6219-4559)
Institutions
- Tiangong University (CN)
- Chinese Academy of Sciences (CN)
- Institute of Physics (CN)
- University of Chinese Academy of Sciences (CN)
Publication Details
- Journal
- Applied Physics Letters
- Published
- 2024-09-02
- DOI
- https://doi.org/10.1063/5.0217524
- Citations
- 6
- Primary Topic
- Magnetic and transport properties of perovskites and related materials
- Type
- article
- Field-Weighted Citation Impact
- 0.71
Funders
- National Natural Science Foundation of China
- China Postdoctoral Science Foundation
- National Key Research and Development Program of China