Proposal to detect dark matter using axionic topological antiferromagnets

Marsh, David. J.; Fong, Kin Chung; Lentz, Erik W.; Šmejkal, Libor; Ali, Mazhar N.

doi:10.1103/PhysRevLett.123.121601

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Proposal to detect dark matter using axionic topological antiferromagnets

MPS-Authors

Marsh, David. J.
Max Planck Institute of Microstructure Physics, Max Planck Society and Cooperation Partners;

Fong, Kin Chung
Max Planck Institute of Microstructure Physics, Max Planck Society and Cooperation Partners;

Lentz, Erik W.
Max Planck Institute of Microstructure Physics, Max Planck Society and Cooperation Partners;

Šmejkal, Libor
Max Planck Institute of Microstructure Physics, Max Planck Society and Cooperation Partners;

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Ali, Mazhar N.
Nano-Systems from Ions, Spins and Electrons, Max Planck Institute of Microstructure Physics, Max Planck Society;

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https://doi.org/10.1103/PhysRevLett.123.121601
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PhysRevLett.123.121601.pdf
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Citation

Marsh, D. J., Fong, K. C., Lentz, E. W., Šmejkal, L., & Ali, M. N. (2019). Proposal to detect dark matter using axionic topological antiferromagnets. Physical Review Letters, 123: 121601. doi:10.1103/PhysRevLett.123.121601.

Cite as: https://hdl.handle.net/21.11116/0000-0009-0CA8-D

Abstract

Antiferromagnetically doped topological insulators (ATI) are among the candidates to host dynamical axion fields and axion polaritons, weakly interacting quasiparticles that are analogous to the dark axion, a long sought after candidate dark matter particle. Here we demonstrate that using the axion quasiparticle antiferromagnetic resonance in ATIs in conjunction with low-noise methods of detecting THz photons presents a viable route to detect axion dark matter with a mass of 0.7 to 3.5 meV, a range currently inaccessible to other dark matter detection experiments and proposals. The benefits of this method at high frequency are the tunability of the resonance with applied magnetic field, and the use of ATI samples with volumes much larger than 1 mm³.