Magnonic frequency and damping in multilayers

Tunable magnonic frequency and damping in [Co/Pd]8 multilayers with variable Co layer thickness
S. Pal, B. Rana, O. Hellwig, T. Thomson, and A. Barman
Appl. Phys. Lett. 98, 082501 (2011)

(a) The time-resolved Kerr rotation data after a biexponential background subtraction and (b) the corresponding FFT spectra are shown for[Co/Pd]8 films with different Co layer thickness tCo.