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PreprintarXiv licencearXiv

Magnon-polaritons in terahertz resonators based on antiferromagnets with weak ferromagnetism

  • Arina A. Luzgina
  • Alexey A. Kraev
  • Shixun Cao
  • Anatolii K. Zvezdin
  • Vladimir I. Belotelov
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Abstract

Terahertz magnon-polaritons in antiferromagnets with weak ferromagnetism are theoretically investigated using YFeO3 as an example. Dispersion relations are obtained for the quasi-ferromagnetic and quasi-antiferromagnetic modes. It is shown that the intrinsic Fabry--Perot resonances of the magnetic slab provide strong coupling, but their low quality factor limits the cooperativity. The photonic crystal cavity increases the cooperativity of the quasi-antiferromagnetic mode from C∼6 to C∼41 at 300K and to 2.2×103 at 63K.

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Cite

BibTeXRIS
BibTeX
@misc{luzgina2026magnonpolaritons,
  title = {{Magnon-polaritons in terahertz resonators based on antiferromagnets with weak ferromagnetism}},
  author = {Arina A. Luzgina and Alexey A. Kraev and Shixun Cao and Anatolii K. Zvezdin and Vladimir I. Belotelov},
  howpublished = {arXiv},
  year = {2026},
  month = nov,
  doi = {10.48550/arxiv.2611.09673},
  eprint = {2611.09673},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2611.09673},
}
RIS
TY  - UNPB
TI  - Magnon-polaritons in terahertz resonators based on antiferromagnets with weak ferromagnetism
AU  - Arina A. Luzgina
AU  - Alexey A. Kraev
AU  - Shixun Cao
AU  - Anatolii K. Zvezdin
AU  - Vladimir I. Belotelov
PY  - 2026
DA  - 2026/11/06
PB  - arXiv
DO  - 10.48550/arxiv.2611.09673
UR  - https://arxiv.org/abs/2611.09673
AB  - Terahertz magnon-polaritons in antiferromagnets with weak ferromagnetism are theoretically investigated using YFeO_3 as an example. Dispersion relations are obtained for the quasi-ferromagnetic and quasi-antiferromagnetic modes. It is shown that the intrinsic Fabry--Perot resonances of the magnetic slab provide strong coupling, but their low quality factor limits the cooperativity. The photonic crystal cavity increases the cooperativity of the quasi-antiferromagnetic mode from C∼6 to C∼41 at 300K and to 2.2×10^3 at 63K.
ER  -