|
Figure 2
Description of the layers (top) and the ribbon 2 (bottom) of (a) Na4Ni7(AsO4)6 and (b) Na4Ni7(PO4)6. The dotted lines show the cell edges. |
|
Figure 2
Description of the layers (top) and the ribbon 2 (bottom) of (a) Na4Ni7(AsO4)6 and (b) Na4Ni7(PO4)6. The dotted lines show the cell edges. |