Chiral Anomaly and Classical Negative Magnetoresistance of Weyl Metals

TL;DR

This paper explores how Weyl metals with Berry curvature fluxes exhibit negative magnetoresistance and support novel plasma waves due to the chiral anomaly, revealing unique anisotropic transport phenomena.

Contribution

It introduces the classical magnetoresistance behavior of Weyl metals with Berry curvature fluxes and links these effects to the chiral anomaly in electron transport.

Findings

Large negative magnetoresistance with anisotropy

Support for a new type of plasma waves

Connection to chiral anomaly phenomena

Abstract

We consider the classical magnetoresistance of a Weyl metal in which the electron Fermi surface possess nonzero fluxes of the Berry curvature. Such a system may exhibit large negative magnetoresistance with unusual anisotropy as a function of the angle between the electric and magnetic fields. In this case the system can support a new type of plasma waves. These phenomena are consequences of chiral anomaly in electron transport theory.