Dual Band Magnonic Crystals: Model System and Basic Spin Wave Dynamics

Figure 5

Dispersion relations of SW localized within the primary sublattice ((a),  nm), and secondary sublattice ((b),  nm); in (a) and (b), the red line corresponds to the DE-like mode () and blue one to the BA-like mode (). Zone boundary is at  rad/m (a) and  rad/m (b). Note that in (b) the wavevector was a parameter of the calculation, while in (a) was extrapolated by phase map inspection.

(a)

(b)