Magnon-photon coupling in the noncollinear magnetic insulator Cu 2 OSeO 3

  title={Magnon-photon coupling in the noncollinear magnetic insulator Cu 2 OSeO 3},
  author={Leonid V. Abdurakhimov and Shoaib Khan and Naitik A. Panjwani and Jonathan D. Breeze and Masatsugu Mochizuki and Shinichiro Seki and Yoshinori Tokura and J. J. L. Morton and Hidekazu Kurebayashi},
  • Leonid V. Abdurakhimov, Shoaib Khan, +6 authors Hidekazu Kurebayashi
  • Published 2019
  • Physics
  • Anticrossing behavior between magnons in a non-collinear chiral magnet Cu$_2$OSeO$_3$ and a two-mode X-band microwave resonator was studied in the temperature range 5-100K. In the field-induced ferrimagnetic phase, we observed a strong coupling regime between magnons and two microwave cavity modes with a cooperativity reaching 3600. In the conical phase, cavity modes are dispersively coupled to a fundamental helimagnon mode, and we demonstrate that the magnetic phase diagram of Cu$_2$OSeO$_3… CONTINUE READING

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