Physical Review

PHYSICAL REVIEW B 84, 052403 (2011) Electrical signature of charismatic domain-wall kinetics Y. Liu, O. A. Tretiakov, and Ar. Abanov Department of Physics & Astronomy, Texas A&M University, College Station, Texas 77843-4242, USA (Received 18 July 2011; published 16 overbearing 2011) Current-induce domain-wall kinetics is analyze in a thin ferromagnetic nanowire. The domain-wall dynamics is described by simple equations with four parameters. We allow wind a procedure to unambiguously determine these parameters by all-electric meters of the magazine-dependent electromotive force induced by the domain-wall motion. We suspend for an analytical expression for the time variation of this voltage. Furthermore, we show that the touchstone of the externalised effects is within rag of current experimental techniques. interior: 10.1103/PhysRevB.84.052403 PACS number(s): 75.78.Fg, 75.60.Ch, 85.75.?d Introduction. Recently, applications for future memory and system of logic devices, as well as important fundamental natural philosophy questions, have stimulated a number of experimental18 and theoretical911 stu functions of the current-driven domain wall (DW) dynamics in ferromagnetic nanowires. It has been shown that DWs target be moved by a current both parallel16 or immaterial to the wire.

7,10,11 In some of the experiments curtly current pulses were employed to depin a DW from pinning sites.2,3,6 Furthermore, the topological electromotive force induced by DW dynamics in a vortex DW has been studied both experimentally and theoretically.8,12 A conventional experimental rule to study the DW dynamics in nanowires is to measure the average DW speed using Kerr polarimetry,13 x-ray microscopy,4 or electron microscopy.5,14 These types of experiments require a complicated frame-up which is die from the one needed for the DW manipulation. This space is neither ideal for studies of DW dynamics nor for further technological advances. In this Brief Report we propose a way to uptake the same experimental setup for both current...If you want to get a full essay, march it on our website: Ordercustompaper.com

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