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29 March 2024
 
  » arxiv » 1905.6040

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Unconventional Hall Effect induced by Berry Curvature
Jun Ge ; Da Ma ; Yanzhao Liu ; Huichao Wang ; Yanan Li ; Jiawei Luo ; Tianchuang Luo ; Ying Xing ; Jiaqiang Yan ; David Mandrus ; Haiwen Liu ; X.C. Xie ; Jian Wang ;
Date 15 May 2019
AbstractBerry phase and curvature play a key role in the development of topology in physics and have been included in the semiclassical theory as they do contribute to the thermodynamics and transport properties in solid state systems. In this paper, we firstly report the novel nonzero Hall effect in topological material ZrTe5 flakes when in-plane magnetic field is parallel and perpendicular to the current. Surprisingly, both symmetric and antisymmetric components with respect to magnetic field are detected in the in-plane Hall resistivity. Further theoretical analysis suggests that the magnetotransport properties originate from the anomalous velocity induced by Berry curvature in a tilted Weyl semimetal. Our work not only enriches the Hall family but also provides new insight into the Berry phase effect in topological materials.
Source arXiv, 1905.6040
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