Figure 7
From: Tunable short-wavelength spin wave excitation from pinned magnetic domain walls

(a) Schematic of spin wave excitation and propagation in two parallel magnetic nanowires on top of a ferroelectric layer with an a1 and a2 domain. Small arrows indicate the direction of magnetization in zero magnetic field. (b) Dispersion graph of propagating spin waves in the nanowires. (c) Spin wave profiles for several resonance frequencies of the domain wall oscillator. The profiles are a superposition of spin waves generated by the corresponding nth-DE resonance mode at the excitation frequency and some lower order DE modes.