A Proposal to Detect Dark Matter Using Axionic Topological Antiferromagnets
High Energy Physics - Phenomenology2019-09-25v2Mesoscale and Nanoscale PhysicsStrongly Correlated ElectronsHigh Energy Physics - ExperimentInstrumentation and Detectors
Antiferromagnetically doped topological insulators (A-TI) 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 A-TI's in conjunction with low-noise methods of detecting THz photons presents a viable route to detect axion dark matter with mass 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 A-TI samples with volumes much larger than 1 mm3.
@article{arxiv.1807.08810,
title = {A Proposal to Detect Dark Matter Using Axionic Topological Antiferromagnets},
author = {David J. E. Marsh and Kin-Chung Fong and Erik W. Lentz and Libor Šmejkal and Mazhar N. Ali},
journal= {arXiv preprint arXiv:1807.08810},
year = {2019}
}
Comments
6 pages, 4 figures. v2 accepted for publication in Physical Review Letters. Many points clarified, some parameter estimates revised