STEM-HAADF images, variation of Co and Ni contents, and EDS analysis. (a, c) STEM-HAADF images of multisegmented Co-Ni nanowires. (b) Variation of cobalt (red) and nickel (blue) contents along the orange line highlighted in (a) determined via elemental analysis by EDS line scan. (d) EDS analysis measured in the two points marked in the HAADF-STEM image of (c). The presence of Si and O and the absence of Co and Ni can be seen in the EDS spectrum of point 1.
Prida et al. Nanoscale Research Letters 2013 8:263 doi:10.1186/1556-276X-8-263