Abstract

A calculation of the wall-motion response in thin films which combines Walker's dynamic theory with a conservative wall coercive force interaction has been done. The results are compared with recent wall motion data for Permalloy films. The comparison shows that the observed nonlinear response cannot be explained by these two factors alone. A more sophisticated analysis of wall motion in a conservative potential is needed. Relaxation effects may provide an alternate explanation of the nonlinear behavior.

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