For now, you can adjust the parameters in the applet and see how the motion changes. The motion demonstrated above may remind you of other, more familiar physical systems, such as a damped mass on a spring . The equations of motion, with a few subtleties aside, are the same. FMR occurs when the magnetized ferrite is subject to microwave radiation with a frequency near the natural precessional frequency of the magnetization. Spin waves, which as the name implies, involve propagating magnetic excitations, will be discussed in the next section.
Spin waves play a key role in the process of damping the motion of the magnetization vector.