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Figure 4
(Top) Temperature dependence of the integrated intensity of the 102 Bragg peak and the lattice parameters in YMnO3. The lines represent our theoretical calculations using Landau–Ginzburg analysis with one order parameter (solid) and two order parameters (dashed line). The structural transition (P63/mmc to P63cm) and the secondary transition are clearly visible at 1225 and 1012 K, respectively. (bottom) The temperature dependence is presented of the two lattice constants with the lines serving as guides for the eye at both below and above the second transition at 1012 K.

ISSN: 2052-5206
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