Figure 12
Comparison of the experimental XANES spectrum at the Mn K-edge in LaMnO3 (open circles) and the theoretical spectra calculated cluster by using the complex DH potential on two clusters containing 125 atoms, rmax = 7 Å (green, dashed line) and 295 atoms, rmax = 9.5 Å, (blue, dotted line). The computations were made by imposing an overlapping factor of 1% and lmax = 4. For the sake of completion the calculation performed on the biggest cluster by using lmax = 3 (red, solid line) is also shown. This figure is in colour in the electronic version of this paper. |