J. H. Franken, M. Hoeijmakers, H. J. M. Swagten, and B. Koopmans
PRL 108, 037205 (2012)
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| (a) Resistance change Delta R due to 20DWs in a Pt=Co=Pt strip as a function of Ga dose. (b) Perpendicular anisotropy as a function of Ga dose. The red line is an exponential fit. (c) Normalized DW resistivity as a function of anisotropy. The red line is the theoretical result of the Levy-Zhang model . The same data are plotted in (d) as a function of DW width, showing the 1=Delta^2 dependence. |
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