Figure 6
Modulation of the nearest-neighbour O—Mn—O bond angles close to 90° (inside MnO6 octahedra) in CaMn7O12 are shown for Mn2 and Mn3 positions in panels a and b, respectively. The horizontal axis shows the scale in relative units [see equation (1)]. Results obtained from the analysis of synchrotron radiation diffraction data at T = 10 K (see text). This figure is in colour in the electronic version of this paper. |