Localized magnetostatic modes as guiding waves in ferromagnetic nanostripes

Authors:

• Maciej Krawczyk

Abstract

We show that magnetostatic modes with amplitude localized in different regions of the sample occur in ferromagnetic nanorods and ferromagnetic nanostripes along the direction of the magnetic field. The modes in question have amplitude localized in two regions symmetric with respect to the center of the sample (bulk-dead modes) or in its central part (comb modes), or spread across the whole sample (bulk modes). Having established that the localization of these magnetostatic modes varies with their frequency, we demonstrate that these localized modes can be used for guiding magnetostatic waves along a stripe. © 2010 IOP Publishing Ltd.