Print Email Facebook Twitter Magnetomechanical coupling and ferromagnetic resonance in magnetic nanoparticles Title Magnetomechanical coupling and ferromagnetic resonance in magnetic nanoparticles Author Keshtgar, H. (Institute for Advanced Studies in Basic Sciences, Zanjan) Streib, S.D. (TU Delft QN/Bauer Group) Kamra, Akashdeep (Universität Konstanz) Blanter, Y.M. (TU Delft QN/Blanter Group) Bauer, G.E. (TU Delft QN/Bauer Group; Tohoku University) Date 2017-04-27 Abstract We address the theory of the coupled lattice and magnetization dynamics of freely suspended single-domain nanoparticles. Magnetic anisotropy generates low-frequency satellite peaks in the microwave absorption spectrum and a blueshift of the ferromagnetic resonance (FMR) frequency. The low-frequency resonances are very sharp with maxima exceeding that of the FMR, because their magnetic and mechanical precessions are locked, thereby suppressing the effective Gilbert damping. Magnetic nanoparticles can operate as nearly ideal motors that convert electromagnetic into mechanical energy. The Barnett damping term is essential for obtaining physically meaningful results. To reference this document use: http://resolver.tudelft.nl/uuid:eeafd234-b71d-4ac3-81b6-7e0d6c6f78cb DOI https://doi.org/10.1103/PhysRevB.95.134447 ISSN 2469-9950 Source Physical Review B, 95 (13) Part of collection Institutional Repository Document type journal article Rights © 2017 H. Keshtgar, S.D. Streib, Akashdeep Kamra, Y.M. Blanter, G.E. Bauer Files PDF PhysRevB.95.134447.pdf 488.97 KB Close viewer /islandora/object/uuid:eeafd234-b71d-4ac3-81b6-7e0d6c6f78cb/datastream/OBJ/view