Ultrafast magnetic-moment-flip waves in iron garnet films
Logginov A. S. , Nepokoichitskii G. A.
Record high velocities, up to ~6χ104 m/s, have been observed for magnetic-moment-flip waves in iron garnet films. These velocities are more than an order of magnitude higher than the minimum spin-wave phase velocity. The velocities of the domain walls do not exceed the Walker limit in pulsed fields up to the effective uniaxial-anisotropy field.