Dynamics of closure domain structure in bistable ferromagnetic microwire

Stress-Induced Changes in Closure Domain Structure Dynamics in Bistable Ferromagnetic Microwire

“…By this procedure it is possible to detect whether the wall was depinned or not during the second pulse. For a given value of τ c the corresponding critical magnitude of eld pulse H pc above which and below which a free domain wall was and was not generated, respectively, was found in a similar way as reported in [6]. 3.…”

“…3. As can be expected the magnitude H pc increases with decreasing τ c [6]. For long time intervals τ c , the critical eld H pc converges to its minimum value H pc min .…”

“…The next step of the processing of experimental data in Fig. 3 can be the modeling of the depinning process and tting theoretical results to the experimental ones in a similar way as in [6]. This approach is under preparation.…”

“…In this paper a new simple experimental method which allows study of the dynamics of the process of wall depinning from the wire end is proposed. The critical parameters of a rectangular magnetic eld pulse (its length and magnitude) [6] at which a free domain wall is released from the wire end are determined from this experiment. The inuence of applied tensile stress on the closure domain structure dynamics is also studied using this method.…”

Domain Wall Depinning Process in Bistable Glass-Coated Microwire

“…At some distance from this wire end a pick up coil (PuC), 1 cm long with diameter of 1mm, is located and gives possibility to obtain information about magnetic state of the wire. Detailed description of the experiment is given in [11]. The dependence of critical pulse length vs. critical pulse magnitude obtained in experiment is shown in Fig.…”