Collective magnetostatic modes on a one-dimensional array of ferromagnetic stripes

The peculiarities of collective magnetostatic modes on a one-dimensional array of ferromagnetic stripes have been studied. It has been shown that the frequency splitting, induced via dipole magnetostatic coupling in the oscillations of otherwise individual stripes, can achieve the values of the order of several GHz. This makes it easily observable by means of a standard Brillouin light spectrometer. To quantify the investigated effects, an analytical technique developed earlier for an isolated stripe has been extended to the case of a one-dimensional array of ferromagnetic stripes. The magnetization profiles of the stripes in the presence of strong coupling have been estimated numerically.