Sample chamber for synchrotron based in-situ X-ray diffraction experiments under electric fields and temperatures between 100 K and 1250 K

Nentwich, M.; Weigel, T.; Richter, C.; Stöcker, H.; Mehner, E.; Jachalke, S.; Novikov, D.V.; Zschornak, M.; Meyer, D.C.

doi:10.1107/S1600577520014344

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Figure 11
Temperature dependence of remanent polarization P_R, coercive field E_C, and relative permittivity ɛ_r of a PIC 153 type PZT sample. On the one hand, the Curie temperature was determined as the local maximum of the relative permittivity at $[T_{\varepsilon_{\rm{r}}}]$ = 429 K, which is lower than the reported value of T_C,lit ≃ 438 K. On the other hand, the residual signal of the measurement setup was determined for P_R and the drop below this limit is associated with the phase transition ( $[T_{P_{\rm R}}]$ = 427 K). The room temperature values for P_R and E_C were extrapolated (orange) as 23.4 µC cm⁻² and 0.65 MV m⁻¹, respectively. Two further phase transitions are visible at ∼375 K and ∼412 K. The temperatures marked with blue asterisks were used for the hysteresis plot in Fig. 12

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 28| Part 1| January 2021| Pages 158-168

https://doi.org/10.1107/S1600577520014344

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