Perpendicular in-plane negative magnetoresistance in ZrTe5

The unique band structure in topological materials frequently results in unusual magneto-transport phenomena, one of which is in-plane longitudinal negative magnetoresistance (NMR) with the magnetic field aligned parallel to the electrical current direction. This NMR is widely considered as a hallma...

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Bibliographic Details
Published in:arXiv.org 2023-05
Main Authors: Ma, Ning, Xiao-Bin, Qiang, Xie, Zhijian, Zhang, Yu, Yan, Shili, Cao, Shimin, Wang, Peipei, Zhang, Liyuan, Gu, G D, Li, Qiang, Xie, X C, Hai-Zhou, Lu, Wei, Xinjian, Jian-Hao, Chen
Format: Article
Language:English
Subjects:
Magnetic fields
Magnetoresistance
Magnetoresistivity
NMR
Nuclear magnetic resonance
Quantum transport
Topology
Transport phenomena
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Summary:The unique band structure in topological materials frequently results in unusual magneto-transport phenomena, one of which is in-plane longitudinal negative magnetoresistance (NMR) with the magnetic field aligned parallel to the electrical current direction. This NMR is widely considered as a hallmark of chiral anomaly in topological materials. Here we report the observation of in-plane NMR in the topological material ZrTe5 when the in-plane magnetic field is both parallel and perpendicular to the current direction, revealing an unusual case of quantum transport beyond the chiral anomaly. We find that a general theoretical model, which considers the combined effect of Berry curvature and orbital moment, can quantitatively explain this in-plane NMR. Our results provide new insights into the understanding of in-plane NMR in topological materials.
ISSN:2331-8422