Higher-order, quantum magnetic inductions in chiral topological materials

TL;DR

This paper introduces quantum induction effects caused by Berry curvature in chiral topological materials, revealing higher-order magnetic responses that are enhanced near Weyl points and proposing an experimental detection method.

Contribution

It uncovers higher-order quantum induction effects in topological materials induced by Berry curvature, expanding understanding of magnetic responses beyond classical effects.

Findings

Quantum induction effects are linked to Berry curvature.

Effects are significantly enhanced near Weyl points.

Proposed ac-magnetic-field measurement to detect quantum induction.

Abstract

The classic magnetic induction effect is usually considered in electric circuits or conductor coils. In this work, we propose quantum induction effects induced by the Berry curvature in homogenous solids. Two different types of quantum inductions are identified in the higher order of a magnetic field. They are closely related to the magnetic-field-induced anomalous velocity proportional to the Berry curvature so that both quantum inductions become significantly enhanced near Weyl points. Further, we propose an ac-magnetic-field measurement to detect quantum induction effects and distinguish them from classical induction.