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Area of Science:

  • Condensed Matter Physics
  • Particle Astrophysics

Background:

  • Antiferromagnetically doped topological insulators (ATI) are potential hosts for dynamical axion fields and axion polaritons.
  • These quasiparticles are analogous to the elusive dark axion, a leading dark matter candidate.

Purpose of the Study:

  • To demonstrate a viable method for detecting axion dark matter.
  • To explore a mass range currently inaccessible to other detection experiments.

Main Methods:

  • Utilizing axion quasiparticle antiferromagnetic resonance in ATIs.
  • Employing low-noise detection methods for terahertz (THz) photons.

Main Results:

  • A viable route for detecting axion dark matter with masses between 0.7 and 3.5 meV is presented.
  • The method leverages the tunability of resonance with magnetic fields and large ATI sample volumes (>1 mm³).

Conclusions:

  • The proposed method offers a novel approach to dark matter detection.
  • This technique expands the accessible mass range for axion dark matter searches.