2023Science Bulletin

Perpendicular in-plane negative magnetoresistance in ZrTe₅

Ning Ma, Xiao-Bin Qiang, Zhijian Xie, Yu Zhang, Shili Yan, Shimin Cao, Peipei Wang, Liyuan Zhang, G.D. Gu, Qiang Li, X.C. Xie, Hai-Zhou Lu, Xinjian Wei, Jian-Hao Chen

Science Bulletin · 68, 1488-1492 (2023)

Read original paper

DOI 10.1016/j.scib.2023.06.018

**AI thematic illustration**Concept artwork created for this paper.

Introduction

ZrTe₅ exhibits negative in-plane magnetoresistance even when the field is perpendicular to the current. The authors compare both field geometries with a model incorporating Berry curvature and orbital magnetic moment.

A closer reading

The perpendicular configuration is a stringent control. A parallel-field resistance decrease alone is often associated with a chiral anomaly; a mechanism for these samples must also account for the perpendicular-field signal.