Unconventional Hall effect induced by Berry curvature. Issue 12 (15th July 2020)

• Record Type: Journal Article
• Authors: Ge, Jun; Ma, Da; Liu, Yanzhao; Wang, Huichao; Li, Yanan; Luo, Jiawei; Luo, Tianchuang; Xing, Ying; Yan, Jiaqiang; Mandrus, David; Liu, Haiwen; Xie, X C; Wang, Jian
• Is Part Of: National science review. Volume 7:Issue 12(2020)
• Page Start: 1879
• Page End: 1885
• Publication Date: 2020-07-15
• Subjects: Berry curvature -- topological material -- Hall effect -- tilted Weyl semimetal -- Berry phase effect; Science -- Periodicals; 505
• DOI: 10.1093/nsr/nwaa163
• Languages: English
• ISSNs: 2095-5138

Abstract

Abstract: Berry phase and Berry curvature play a key role in the development of topology in physics and do contribute to the transport properties in solid state systems. In this paper, we report the finding of novel nonzero Hall effect in topological material ZrTe5 flakes when the 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 insights into the Berry phase effect in topological materials.