Figure 4
Histogram (bin width 25 p.p.m. K−1) of the principal expansion coefficients, αL, at 298 K for all 6201 structure families. The distribution includes all three linear coefficients for each structure family (18 603 αL values in total). The dashed line shows a continuous skew normal distribution fitted to the histogram values across the range, approximated by two half normal distributions (solid line). |