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Publication Citation: Parametric pumping of precession modes in ferromagnetic nanodisks

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Author(s): Feng Guo; Lyubov Belova; Robert D. McMichael;
Title: Parametric pumping of precession modes in ferromagnetic nanodisks
Published: March 26, 2014
Abstract: We report parametric excitation of magnetic precession modes in nanodisks using a parallel pumping configuration. The excitations are detected using a ferromagneitc resonance force microscopy method, and the parallel-pumped spectra reveal nonlinear characteristics including instability thresholds and multiple, narrow, saw-tooth-shaped resonances. These characteristics are in accord with analytical theory and micromagnetic modeling results. Modeled mode profiles of the excitations show that higher order standing spin-wave modes with both even and odd symmetries are excited under parallel pumping.
Citation: Physical Review B
Volume: 89
Issue: 10
Keywords: parametric pumping; parallel pumping; spin waves; ferromagnetic resonance (FMR); micromagnetic modeling; ferromagnetic resonance force microscopy (FMRFM); nanomagnetics
Research Areas: Condensed Matter Physics, Magnetics, Nanomagnetics
DOI: http://dx.doi.org/http://link.aps.org/doi/10.1103/PhysRevB.89.104422  (Note: May link to a non-U.S. Government webpage)
PDF version: PDF Document Click here to retrieve PDF version of paper (2MB)