Figure 4
Parts of the Rietveld refinement plots of neutron powder diffraction patterns (ILL D20, λ = 2.418 Å) measured at 60 K for CaCuxMn7-xO12, for x = 0.0 (panel a), 0.1 (panel b) and 0.23 (panel c). Solid points = measured data, solid line through the data points = refined profile, solid line at bottom = difference. The two sets of tick marks represent the Bragg positions for CaMn7O12 crystal structure (top) and CaMn7O12 magnetic structure (bottom). |