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AFM nanomanipulation of magnetic nanoparticles (MNPs). (a) AFM tapping mode height image of two individual C50 MNPs before nanomanipulation of two MNPs in the bottom of the figure. (b) The same image after the AFM tip was used to move particles above the Hall bar devices with a line width of 100 nm. Dashed circles and arrows indicate nanoparticles and the path of the AFM tip, correspondingly.
