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 influence of the field normal to the anisotropy axis on the Walker critical field, critical velocity and the maximum velocity of the steady-state domain wall motion. It is shown that the maximum value of the drive field dependence of the velocity of the steady-state motion is the Schlomann limiting velocity. The dependences of the Walker critical field and velocity as well as the Schlomann limiting velocity on the field normal to the anisotropy axis have been obtained.