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. 2016 Jun 14;6:27840. doi: 10.1038/srep27840

Figure 4.

Figure 4

(a) The SEM image of the fresh surface for sample x = 0.15. The SEM image of a local area is shown in (b), and the planar distributions of elements Ru (b), Ba (c), Sr (d), and Ca (e) from the electron probe microanalysis are given respectively.