Figure 6
Temperature dependence of the unit-cell edge lengths and volume for α-MgSO4 (a–d) and β-MgSO4 (e–h). Solid lines are weighted least-squares fits of the Debye model described in the text. For the b axis of β-MgSO4 (f) the solid line is a combined Debye + Einstein model. For all plots except (f) (where the errors bars are given), standard errors are of the same size as, or smaller than, the symbols used. (f) has an expanded vertical scale as a result of the very small variation in the length of the b axis of β-MgSO4 with temperature. The data used in the preparation of these plots may be found in supplementary electronic files deposited with the IUCr. |