ABSTRACT
Figure 1 a) Image spectroscopy data from Fe55Ni 45 nanoparticles. b) Energy-loss spectrum derived from a). c)- d) Elemental maps derived from the Fe L2•3 and 0 K edges. e) Image spectroscopy measurements of Fe/Ni ratios in several nanoparticles in samples of nominal composition: I. Fe55Ni 45, 2. Fe30Ni 70 and 3. Fe10Ni90, plotted vs . post-edge window size starting at the Fe and Ni L2•3 edge thresholds. f) Oxygen map, showing faceting around a 75 nm nanoparticle, after sub-pixel alignment of the images.
