2019年4月3日
Magnon-photon coupling in the noncollinear magnetic insulator Cu2OSeO3
Physical Review B
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- 巻
- 99
- 号
- 14
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/physrevb.99.140401
- 出版者・発行元
- American Physical Society (APS)
Anticrossing behavior between magnons in the noncollinear chiral magnet Cu2OSeO3 and a two-mode X-band microwave resonator was studied in the temperature range 5-100 K. 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 Cu2OSeO3 can be reconstructed from the measurements of the cavity resonance frequency. In the helical phase, a hybridized state of a higher-order helimagnon mode and a cavity mode-a helimagnon polariton-was found. Our results reveal a class of magnetic systems where strong coupling of microwave photons to nontrivial spin textures can be observed.
- リンク情報
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- DOI
- https://doi.org/10.1103/physrevb.99.140401
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000463881700001&DestApp=WOS_CPL
- URL
- https://link.aps.org/article/10.1103/PhysRevB.99.140401
- URL
- http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.99.140401/fulltext
- ID情報
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- DOI : 10.1103/physrevb.99.140401
- ISSN : 2469-9950
- eISSN : 2469-9969
- Web of Science ID : WOS:000463881700001