Magnetoresistance and Scaling Laws in Type-II Weyl Semimetal WP_2

TL;DR

This study investigates the magnetoresistance behavior of the type-II Weyl semimetal WP2, showing that classical theories can explain its properties without relying on topological surface states, offering new insights into topological material transport.

Contribution

The paper demonstrates that semi-classical models suffice to explain magnetoresistance in WP2, challenging the necessity of topological surface states for such phenomena.

Findings

Magnetoresistance in WP2 aligns with semi-classical theories.

Resistivity behavior changes from metallic to semiconducting under magnetic field.

Provides an alternative understanding of magnetoresistance in topological materials.

Abstract

Topological materials with extremely large magnetoresistance exhibit a prognostic feature of resistivity turn-on behaviour. This occurs when the temperature dependence of resistivity changes from metallic to semiconducting characteristics on application of external magnetic field above a threshold value. Here, we study the magneto-transport properties of type-II Weyl Semimetal WP2. We find that semi-classical theories of magnetoresistance are consistent with our data without the need to invoke topological surface states. Our findings in this work provides an alternative basis to understand the temperature dependence of magnetoresistance in topological materials.