Magnon Accumulation in Chirally Coupled Magnets

Magnon Accumulation in Chirally Coupled Magnets

We report strong chiral coupling between magnons and photons in microwave waveguides that contain chains of small magnets on special lines. Large magnon accumulations at one edge of the chain emerge when exciting the magnets by a phased antenna array. This mechanism holds the promise of new function...

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Veröffentlicht in:Physical review letters 2020-03, Vol.124 (10), p.107202-107202, Article 107202
Hauptverfasser: Yu, Tao, Zhang, Yu-Xiang, Sharma, Sanchar, Zhang, Xiang, Blanter, Yaroslav M., Bauer, Gerrit E. W.
Format: Artikel
Sprache:eng
Schlagworte:
Antenna arrays
Chains
Magnets
Magnons
Physical Sciences
Physics
Physics, Multidisciplinary
Science & Technology
Waveguides
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Zusammenfassung:We report strong chiral coupling between magnons and photons in microwave waveguides that contain chains of small magnets on special lines. Large magnon accumulations at one edge of the chain emerge when exciting the magnets by a phased antenna array. This mechanism holds the promise of new functionalities in nonlinear and quantum magnonics.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.124.107202