First-Order Ferroelectric Phase Transitions - Practical Electron Microscopy and Database - - An Online Book - |
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Microanalysis | EM Book https://www.globalsino.com/EM/ | ||||||||
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The first-order ferroelectric phase transition induces thermal hysteresis. Figure 1783 shows elastic Gibbs free energy for a first order ferroelectric phase transition at different temperatures. The polarization here is also called remanent polarization, or zero field electric displacement; the Curie-Weiss temperature represents the lowest temperature at which the paraelectric phase may exist; the Curie temperature represents the phase transition temperature; the ferroelectric limit temperature represents the highest temperature at which the ferroelectric phase may exist; and the limit temperature of field induced phase transition represents the highest temperature at which the ferroelectric phase may be induced by the external electric field.
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