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PVP-stabilized FeCo nanocubes: (a) TEM image of 175-nm particles and (d) the corresponding microscopy-derived size distribution; (b) SEM image of 50-nm particles and (e) the corresponding microscopy-derived size distribution; and (c) SEM image of 450-nm particles and (f) the corresponding microscopy-derived size distribution. Size distributions are based on 50–60 nanoparticles observed in an image. The sizes (given in nanometers) correspond to the mean cubic body diagonal.
