Yaoxin Li, Yongchao Wang, Zichen Lian, Hao Li, Zhiting Gao, Liangcai Xu, Huan Wang, Rui'e Lu, Longfei Li, Yang Feng, Jinjiang Zhu, Liangyang Liu, Yongqian Wang, Bohan Fu, Shuai Yang, Luyi Yang, Yihua Wang, Tianlong Xia, Chang Liu, Shuang Jia, Yang Wu, Jinsong Zhang, Yayu Wang, Chang Liu
The van der Waals antiferromagnetic topological insulator MnBi2 Te4 represents a promising platform for exploring the layer-dependent magnetism and topological states of matter. Recently observed discrepancies between magnetic and transport properties have aroused controversies concerning the topological nature of MnBi2 Te4 in the ground state. In this article, we demonstrate that fabrication can induce mismatched even-odd layer dependent magnetotransport in few-layer MnBi2 Te4 . We perform a comprehensive study of the magnetotransport properties in 6- and 7-septuple-layer MnBi2 Te4 , and reveal that both even- and odd-number-layer device can show zero Hall plateau phenomena in zero magnetic field...
April 22, 2024: Nature Communications