Nonlinear Ferromagnetic Resonance in Nanostructures Having Discrete Spectrum of Spin-Wave Modes

G. Melkov (1) , D. V. Slobodianiuk (1) , V. S. Tiberkevich (2) , G. de Loubens (3) , O. Klein (4) , A. N. Slavin (2)

1 Department of Radiophysics [Kyiv]
2 Department of Physics [Rochester]
3 LNO - Laboratoire Nano-Magnétisme et Oxydes
4 LISER - Luxembourg Institute of Socio-Economic Research

Nonlinear ferromagnetic resonance (NFMR) at the nanoscale differs from the same phenomenon in bulk magnetic samples due to the nanosize-related discreteness of the spin wave spectrum. Because of the spectrum discreteness, the conservation laws for multiwave parametric interaction processes cannot be fulfilled exactly and become nonresonant. The presence of the nonresonant parametric processes in a strongly driven magnetic nanosystem can be detected experimentally as distortions on the NFMR curve caused by the nonresonant excitation of spin wave modes.

Domaines: Physique [physics]

G. Melkov, D. V. Slobodianiuk, V. S. Tiberkevich, G. de Loubens, O. Klein, et al.. Nonlinear Ferromagnetic Resonance in Nanostructures Having Discrete Spectrum of Spin-Wave Modes. IEEE Magnetics Letters, 2013, 4, pp.4000504 - 4000504. ⟨10.1109/LMAG.2013.2278682⟩. ⟨cea-01478952⟩