 | Acta Crystallographica Section B Acta Crystallographica Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS |
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![[Figure 11]](bk0150fig11mag.jpg)
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Figure 11
TTF–CA – the intensity of the (030) reflection is shown as the temperature is raised and lowered around the transition temperature of ∼ 81 K. The (030) reflection distinguishes between the neutral-phase space group P21/n [((030) absent] and the ionic phase space group Pn [(030) allowed]. Note the hysteresis. The cooling curve is Fig. 2(a) from Le Cointe, Lemée-Cailleau et al. (1995  ) or Fig. 4 from Le Cointe et al. (1996); the complete hysteresis curve is Fig. 2 of Buron-Le Cointe et al. (2003). |
![[Figure 11]](bk0150fig11.jpg)
| STRUCTURAL SCIENCE CRYSTAL ENGINEERING MATERIALS |
ISSN: 2052-5206
