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Figure 4
The temperature dependence of the long-range order parameter, P, based on the Bragg–Williams model. The ordering energy, U = 462 (4) K, is determined by a least-squares fit to the points indicated (open circles).

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 62| Part 6| November 2006| Pages 953-959
doi:10.1107/S0108768106039309
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