On the Formulation of the Exchange Field in the Landau-Lifshitz Equation for Spin-Wave Calculation in Magnonic Crystals
Figure 6
Magnonic band structure calculated for various forms of the exchange field. MCs composed of Fe and YIG were studied with a periodicity in (a) 1D and (b) 2D. The lattice constant is 30 nm and the film thickness 4 nm in both cases. The external magnetic field is applied along -axis and has the value almost 0 for 1D MC and 0.1 T for 2D MC.
