Resolution:
## Figure 7.
Three-dimensional plots forandcontributions of the totalexchange potential of γ-Al_{2}O_{3}. Three-dimensional plots for (a) and (b) contributions of (c) the total exchange potential for γ-Al_{2}O_{3}. is obtained from Equation 3 by setting and is obtained from Equation 3 by setting c = 0. is obtained from Equation 3 using the optimized c-factor, i.e., c = 1.8.
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