Research Article

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

Figure 3

Out-of-plane real component of the dynamic magnetization (arbitrary units) for the two fundamental modes localized in complementary regions of the array (with B at θ = 0°), consisting of the superposition of two sublattices with different lattice constant. Here, we plot an illustrative periodic cell extract of the ideally infinite 2D array. (a) Fundamental spin wave mode () localized within the elements of the primary sublattice only, showing an irregular intensity distribution discussed in the text; (b) fundamental spin wave mode () strictly localized in the secondary sublattice.
(a)
(b)