Work

Chiral anomaly induced negative magnetoresistance in topological Weyl semimetal NbAs

Year: 2015

Type: preprint

Abstract: In this paper, we report the intercone transport of Weyl fermions in NbAs with external magnetic field in parallel to electric field, a quantum phenomenon known as the Adler-Bell-Jackiw anomaly. Surprisingly, the resulting negative magnetoresistance (MR) in NbAs shows significant difference from NbP. The observed low-field positive MR dip, which is missing in NbP at low temperatures, indicates that the spin-orbital coupling (SOC) is significantly stronger in NbAs than in the former. The results imply that the contribution of arsenic to SOC in TaAs and NbAs is not negligible.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.1506.03190

Authors: Yang, Xiaojun, Liu, Yupeng, Wang, Zhen, Zheng, Yi, Xu, Zhu-an

Institutions: State Key Laboratory of Silicon Materials, Zhejiang University

Language: English

Topic: Topological Materials and Phenomena

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W573769552

Cites: 7

Cited by: 77

Related to: 10