Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Parametric pumping of precession modes in ferromagnetic nanodisks



Feng Guo, Lyubov Belova, Robert McMichael


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.
Physical Review B


parametric pumping, parallel pumping, spin waves, ferromagnetic resonance (FMR), micromagnetic modeling, ferromagnetic resonance force microscopy (FMRFM), nanomagnetics


Guo, F. , Belova, L. and McMichael, R. (2014), Parametric pumping of precession modes in ferromagnetic nanodisks, Physical Review B, [online],, (Accessed April 21, 2024)
Created March 25, 2014, Updated October 12, 2021