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Figure 4: (Color) band structures for (a) Ag3PO4, (b)Ag2O, and (c) AgNbO3. The square of the wave function (yellow surface) corresponding to the CBM is also shown in each case, where silver, red, mauve, and green particles represent the positions of Ag, O, P, and Nb atoms, respectively. The isosurfaces are at 0.01 e3 [32].