Abstract
It is shown experimentally that in a two-dimensional array of Permalloy nanodots the lifetime of the electromagnetic microwave radiation at the sub-harmonic frequency originated from the parametrically excited ferromagnetic resonance mode is increased by two orders of magnitude compared to the case of a continuous magnetic film.
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References
S.O. Demokritov (Ed.), ¨Spin wave confinement¨ (Pan Stanford Publ., Singapore, 2009).
Y. Kobljanskyj, G.A. Melkov, K.Y. Guslienko, V. Novosad, S.D. Bader, M. Kostylev, and A.N. Slavin, ¨Nano-structured magnetic metamaterial with enhanced nonlinear properties¨, Sci. Reports 2, 478 (2012).
Acknowledgments
K.G. acknowledges support by IKERBASQUE (the Basque Foundation for Science). This work was partially supported by the Spanish MEC grants PIB2010US-00153, FIS2010-20979-C02-01, by the National Sci. Foundation of USA (grant DMR-1015175), by the State Fund of Fundamental Res. of Ukraine (project #UU34/008), by the MES of Ukraine (grant No. M/90-2010), by the Australian Res. Council, and by the U.S. DOE Office of Science (contract DE-AC02-06CH11357).
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Guslienko, K. et al. (2015). Nonlinear Spin Waves in Two-Dimensional Arrays of Magnetic Nanodots. In: Bigot, JY., Hübner, W., Rasing, T., Chantrell, R. (eds) Ultrafast Magnetism I. Springer Proceedings in Physics, vol 159. Springer, Cham. https://doi.org/10.1007/978-3-319-07743-7_65
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DOI: https://doi.org/10.1007/978-3-319-07743-7_65
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