Print Email Facebook Twitter Chiral excitation of spin waves in ferromagnetic films by magnetic nanowire gratings Title Chiral excitation of spin waves in ferromagnetic films by magnetic nanowire gratings Author Yu, T. (TU Delft QN/Bauer Group; Kavli institute of nanoscience Delft) Liu, Chuanpu (Beihang University) Yu, Haiming (Beihang University) Blanter, Y.M. (TU Delft QN/Blanter Group; Kavli institute of nanoscience Delft) Bauer, G.E. (TU Delft QN/Bauer Group; Kavli institute of nanoscience Delft; Tohoku University) Date 2019 Abstract We theoretically investigate the interlayer dipolar and exchange couplings between an array of metallic magnetic nanowires grown on top of an extended ultrathin yttrium iron garnet film. The calculated interlayer dipolar coupling agrees with observed anticrossings [Chen et al., Phys. Rev. Lett. 120, 217202 (2018)PRLTAO0031-900710.1103/PhysRevLett.120.217202], concluding that the interlayer exchange coupling is suppressed by a spacer layer between the nanowires and film for Ni, but not necessarily for Co. The Kittel mode in the nanowire array couples chirally to spin waves in the film, even though Damon-Eshbach surface modes do not exist. The chirality can be suppressed by a strong interlayer exchange coupling. To reference this document use: http://resolver.tudelft.nl/uuid:cde62380-c3d7-4778-b065-dd6b9d452114 DOI https://doi.org/10.1103/PhysRevB.99.134424 ISSN 2469-9950 Source Physical Review B, 99 (13) Part of collection Institutional Repository Document type journal article Rights © 2019 T. Yu, Chuanpu Liu, Haiming Yu, Y.M. Blanter, G.E. Bauer Files PDF PhysRevB.99.134424.pdf 597.02 KB Close viewer /islandora/object/uuid:cde62380-c3d7-4778-b065-dd6b9d452114/datastream/OBJ/view