Figure 2. 40 $$ \times $$ 40 μm SXDM map of LNO polycrystalline pristine powder. Pixel resolution $$ \sim $$ 400 nm. XRD intensity of multiple single crystals in Bragg condition (A). $$ c_{axis} $$ lattice parameter extracted by fitting the Bragg peak Center of Mass (COM) of each single pixel within the collected map (B).