Figure 3
Observed (crosses) and calculated (solid line) synchrotron X-ray diffraction patterns of [Ca2CoO3][CoO2]1.62. Inset: a detail showing a splitting due to the triclinic symmetry [crosses: observed pattern; fine solid line (respectively dashed bold line): calculated pattern in monoclinic (respectively triclinic) symmetry]. (a) Monoclinic indexation. (b) Triclinic indexation. Arrows: supplementary satellite reflections (see text). |