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17 August 2014 Correlation between spin structure oscillations and domain wall velocities (presentation video)
Andre Bisig, Martin Stärk, Mohamad-Assaad Mawass, Christoforos Moutafis, Jan Rhensius, Jakoba Heidler, Felix Büttner, Matthias Noske, Markus Weigand, Stefan Eisebitt, Tolek Tyliszczak, Bartel van Waeyenberge, Hermann Stoll, Gisela Schütz, Mathias Kläui
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Proceedings Volume 9167, Spintronics VII; 91671Y (2014) https://doi.org/10.1117/12.2060802
Event: SPIE NanoScience + Engineering, 2014, San Diego, California, United States
Abstract
Magnetic sensing and logic devices based on the motion of magnetic domain walls rely on the precise and deterministic control of the position and the velocity of individual magnetic domain walls. Varying domain wall velocities have been predicted to result from intrinsic effects such as oscillating domain wall spin structure transformations and extrinsic pinning due to imperfections. We use direct dynamic imaging of the nanoscale spin structure to directly check these predictions. We find a new regime of oscillating domain wall motion even below the Walker breakdown correlated with periodic spin structure changes and we show that the extrinsic pinning from defects in the nanowire only affects slow domain walls.
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Andre Bisig, Andre Bisig, Martin Stärk, Martin Stärk, Mohamad-Assaad Mawass, Mohamad-Assaad Mawass, Christoforos Moutafis, Christoforos Moutafis, Jan Rhensius, Jan Rhensius, Jakoba Heidler, Jakoba Heidler, Felix Büttner, Felix Büttner, Matthias Noske, Matthias Noske, Markus Weigand, Markus Weigand, Stefan Eisebitt, Stefan Eisebitt, Tolek Tyliszczak, Tolek Tyliszczak, Bartel van Waeyenberge, Bartel van Waeyenberge, Hermann Stoll, Hermann Stoll, Gisela Schütz, Gisela Schütz, Mathias Kläui, Mathias Kläui, "Correlation between spin structure oscillations and domain wall velocities (presentation video)", Proc. SPIE 9167, Spintronics VII, 91671Y (17 August 2014); doi: 10.1117/12.2060802; https://doi.org/10.1117/12.2060802
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