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Temperature-induced anomalous magnetotransport in the Weyl semimetal Mn3Ge
- Source :
- AIP Advances, Vol 13, Iss 4, Pp 045102-045102-6 (2023)
- Publication Year :
- 2023
- Publisher :
- AIP Publishing LLC, 2023.
-
Abstract
- The magnetic Weyl semimetallic state can lead to intriguing magnetotransport, such as chiral anomaly and the layered quantum Hall effect. Mn3X (X = Sn, Ge) is a noncollinear antiferromagnetic semimetal where a Weyl semimetallic state is stabilized by time-reversal symmetry breaking. Compared to the well-studied Mn3Sn, the Weyl fermion-induced magnetotransport in Mn3Ge has been merely studied. Here, we report an in-depth study on the magnetotransport in a microfabricated Mn3Ge single crystal from room temperature to 10 K. We reveal an anomalous anisotropic magnetoresistance with fourfold symmetry and a positive high-field longitudinal magnetoresistance below the critical temperature (160–170 K). The possible origin is the temperature-induced tilting of the Weyl nodes. Our study helps to understand the magnetotransport properties in the Weyl fermion system.
Details
- Language :
- English
- ISSN :
- 21583226
- Volume :
- 13
- Issue :
- 4
- Database :
- Directory of Open Access Journals
- Journal :
- AIP Advances
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.4d70f0ffac63451fb4dc25564f6dae26
- Document Type :
- article
- Full Text :
- https://doi.org/10.1063/5.0138208