Axion mass in antiferromagnetic insulators

Abstract

We calculate axion potential in antiferromagnetic insulators from path integral. It is derived from the effective potential for the order parameter of the antiferromagnetic phase in insulators. Static and dynamical axions are defined consistently from the potential. Consequently antiferromagnetic/paramagnetic and topological/normal orders are classified. The dynamical axion is predicted in all phases and its mass turns out to be various values up to eV scale.

arXiv comment19 pages, 8 figures, published version

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Cited by in corpus (4)

• Axion/Hidden-Photon Dark Matter Conversion into Condensed Matter Axion
• Collective excitations in magnetic topological insulators and axion dark matter search
• Topology-insensitive axion mass in magnetic topological insulators
• Spin-Orbit Coupling-Driven Chirality Switching of Spin Waves in Altermagnets