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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|
|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:||Click here to retrieve PDF version of paper (2MB)|