Figure7

Figure 7. EXAFS best-fit results obtained for the first Sc-F shell of scandium fluoride[65]. Panels A and B show, respectively, the temperature behavior of $$ E_{0} $$ and $$ {S_0}^2 $$ left free (red circles). Panels C and D show, respectively, the temperature behavior of $$ \Delta {C_1}^* $$ and $$ \Delta {C_2}^* $$ with $$ E_{0} $$ and $$ {S_0}^2 $$ left free (red circles) and with $$ E_{0} $$ and $$ {S_0}^2 $$ fixed to their average value (blue squares), here $$ - $$6.49 eV for $$ E_{0} $$ and 0.91 for $$ {S_0}^2 $$. Lines are a guide to the eyes. Note the strong correlation between $$ \Delta {C_1}^* $$ and $$ E_{0} $$, and between $$ \Delta {C_2}^* $$ and $$ {S_0}^2 $$. Accordingly, when $$ E_{0} $$ and $$ {S_0}^2 $$ are fixed, a more regular trend is obtained for $$ \Delta {C_1}^* $$ and $$ \Delta {C_2}^* $$.