SKM 2021 – scientific programme

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MA: Fachverband Magnetismus

MA 15: Posters Magnetism IV

MA 15.47: Poster

Thursday, September 30, 2021, 13:30–16:30, P

Control of stripe domain-wall magnetization in multilayers with perpendicular magnetic anisotropy — •Ruslan Salikhov¹, Fabian Samad¹, Aladin Ullrich², Manfred Albrecht², Nikolai Kiselev³, and Olav Hellwig^1,4 — ¹Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany — ²University of Augsburg, Augsburg, Germany — ³Forschungszentrum Jülich, Jülich, Germany — ⁴Chemnitz University of Technology, Chemnitz, Germany

We report on the controlled switching of domain wall (DW) magnetization in aligned stripe and bubble domain systems, stabilized in [Co (0.44 nm)/Pt (0.7 nm)]_X (X = 48, 100, 150) multilayers. We show that the remanent in-plane magnetization originates from the polarization of the Bloch-type DWs. The magnetization reversal process within the DWs does not influence the overall stripe and bubble domain morphology. Therefore our approach allows to study and control the magnetization reversal inside the DW by performing in-plane minor hysteresis loop sequences with field applied parallel to the magnetization of the DW Bloch component. The DW magnetization switching mechanisms will be discussed in detail. Our findings are relevant for DW-based magnonics and bubble skyrmion applications in magnetic multilayers.