Figure 6
From: Tunable short-wavelength spin wave excitation from pinned magnetic domain walls

(a–c) Spin wave dispersion diagrams obtained by exciting the magnetic domain wall over a length of only 50 nm. Spin waves with wave vectors
(surface spin waves),
(backward volume spin waves) and
are considered. The black lines in panels (a–c) are numerically calculated using
,
and
, respectively, in equation (1). Harmonics are also included. (d) Dispersion diagram for spin waves that are generated by excitation of the entire magnetic domain wall (the data are identical to those of Fig. 4(d)).