Electronic chiralization as an indicator of the anomalous Hall effect in unconventional magnetic systems

Abstract

The anomalous Hall effect (AHE) can appear in certain antiferromagnetic metals when it is allowed by symmetry. Since the net magnetization is usually small in such anomalous Hall antiferromagnets, it is useful to have other physical indicators of the AHE that have the same symmetry properties as the latter and can be conveniently measured and calculated. Here we propose such indicators named as electronic chiralization (EC), which are constructed using spatial gradients of spin and charge densities in general periodic crystals, and can potentially be measured directly by scattering experiments. Such constructions particularly reveal the important role of magnetic charge in the AHE in unconventional magnetic systems with vanishing net magnetization. Guided by the EC we give two examples of the AHE when magnetic charge is explicitly present: A minimum honeycomb model inspired by the magnetic-charge-ordered phase of kagome spin ice, and skew scattering of two-dimensional Dirac electrons by magnetic charge.

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Cited by in corpus (10)

• Unified description of electronic orderings and cross correlations by complete multipole representation
• Time-reversal-like degeneracies distinguished by the anomalous Hall effect in a metallic kagome ice compound
• Ferroaxial moment induced by vortex spin texture
• Analysis of photo-induced chirality and magnetic toroidal moment based on Floquet formalism
• From chiral spin liquids to skyrmion fluids and crystals, and their interplay with itinerant electrons
• Current-induced quasiparticle magnetic multipole moments
• Uniform and Staggered electric axial moment in zigzag chain
• Nanoscale quantum imaging of field-free deterministic switching of a chiral antiferromagnet
• Hall mass and transverse Noether spin currents in noncollinear antiferromagnets
• Analysis of Spin Current Generation by Elastic Waves in $f$-wave Altermagnets