DOMAIN-WALL DYNAMICS IN THE PRESENCE OF AN EXTERNAL MAGNETIC-FIELD NORMAL TO THE ANISOTROPY AXIS

The generalized Slonczewski equations have been applied to study the i nfluence of the field normal to the anisotropy axis on the Walker crit ical field, critical velocity and the maximum velocity of the steady-s tate domain wall motion. It is shown that the maximum value of the dri ve field dependence of the velocity of the steady-state motion is the Schlomann limiting velocity. The dependences of the Walker critical fi eld and velocity as well as the Schlomann limiting velocity on the fie ld normal to the anisotropy axis have been obtained.