Magnetic domain wall dynamics in garnet film was investigated in a wide range of drive fields (Hz) using high speed photography. It is shown that the wall widening, the so-called dynamic diffuse wall begins at where the velocity, after reaching its saturation, starts to increase again. The dynamic domain wall formation can be interpreted on the basis of the theory of spinodal decomposition, i.e. as the quasi-periodic fluctuation of the wall surface.
Keywords :
Magnetic bubble domains; Magnetic bubble films; YIG films; Anisotropic magnetoresistance; Garnet films; Magnetic domain walls; Magnetic domains; Magnetic fields; Magnetic films; Optical microscopy; Photography; Saturation magnetization; Temperature;