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Axion mass in antiferromagnetic insulators

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arxiv 2103.02848 v2 pith:BGP3TZWL submitted 2021-03-04 hep-ph cond-mat.mes-hallcond-mat.str-el

Axion mass in antiferromagnetic insulators

classification hep-ph cond-mat.mes-hallcond-mat.str-el
keywords antiferromagneticaxioninsulatorspotentialdynamicalmassaxionscalculate
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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.

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Cited by 1 Pith paper

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  1. Collective excitations in magnetic topological insulators and axion dark matter search

    hep-ph 2024-06 unverdicted novelty 4.0

    Effective EM coupling of the axionic quasi-particle mode in magnetic TIs is unchanged or suppressed by up to 100x relative to previous estimates.