Theory of Brillouin cross section for scattering from magnetic multilayers: Second-order magneto-optic effect in Ni/Cu bilayers and trilayers - art. no. 104405
L. Giovannini et al., Theory of Brillouin cross section for scattering from magnetic multilayers: Second-order magneto-optic effect in Ni/Cu bilayers and trilayers - art. no. 104405, PHYS REV B, 6310(10), 2001, pp. 4405
The Brillouin light scattering technique has been exploited to detect spin
waves in Ni/Cu bilayers and trilayers deposited by RF sputtering. In order
to reproduce the experimental results, a macroscopic partial waves approach
is used for the calculation of the normal modes, allowing the application
of this model to magnetic multilayered structures. The Brillouin cross sect
ion of the multilayer is calculated with the Green's functions method, taki
ng into account both first and second order magneto-optic effects (Faraday
and Voigt effect, respectively). By measuring Brillouin spectra for differe
nt applied fields we have determined the magnetic parameters of the films a
s well as the ratio between the first and second order magneto-optic consta
nts.