Abstract
The curvature of the 180° cross-tie wall observed between adjacent crossed Bloch lines is attributed to the ripple model of the coercive field and depends in a defined manner on a magnetic field parallel and vertical to the cross-tie wall. Under the condition that domain walls move in single Barkhausen jumps and considering the stray field of a moving circular Bloch line, the above dependence leads to the motion of the 180° cross-tie wall below the static wall motion threshold, i.e. to wall creeping. Die zwischen benachbarten Kreuzblochlinien beobachtete Auswolbung der 180°-Cross-tie-Wand wird auf das Ripple-Modell der Koerzitivfeldstarke zuruckgefuhrt und hangt in definierter Weise von einem Magnetfeld parallel und senkrecht zur Wand ab. Diese Abhangigkeit fuhrt mit der Bedingung, das sich Domanenwande in einzelnen Barkhausen-Sprungen fortbewegen, und unter Berucksichtigung des Streufeldes einer sich bewegenden Kreisblochlinie zur Bewegung der 180°-Cross-tie-Wand unterhalb der statischen Wandbewegungsschwelle, d. h. zum Wandkriechen.
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