Investigation of Phase Transition in Some Ferroelectrics Calcium and Zinc Doped Diammonium Dibromodichlorinate

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• 作者：Vanitha Duraikkan ; Sultan Asath Bahadur…
• 关键词：Ferroelectric ; Phase transition ; XRD ; PE loop tracer ; AC conductivity
• 刊名：Journal of Inorganic and Organometallic Polymers and Materials
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：27
• 期：1
• 页码：363-371
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Inorganic Chemistry; Organic Chemistry; Polymer Sciences;
• 出版者：Springer US
• ISSN：1574-1451
• 卷排序：27

文摘

Single crystals such as diammonium dibromodichloro calcinate(II), (NH4)₂CaBr₂Cl₂, and diammonium dibromodichloro zincate(II), (NH4)₂ZnBr₂Cl₂, abbreviated as DADBDC-Ca and DADBDC-Zn, respectively, were grown successfully by solution growth method. Single crystal X-ray diffraction, thermal analysis, AC conductivity; Fourier transform infra-red (FT-IR) spectroscopy, Differential scanning calorimetry were used to characterize the grown crystals. The surface morphology and chemical composition of the compound were analyzed by SEM and EDX studies. The cell parameters and crystallinity of the grown crystals were determined using single crystal and powder X-ray diffraction analysis. FT-IR spectra are used to confirm the presence of various functional groups in the sample. The phase transition of the sample was analyzed by differential scanning analysis. The electrical conductivity for the grown crystals has been calculated through impedance at various temperatures. It can be foreseen that the transition temperature reveals the ferroelectricity of the compound. The ferroelectric characteristics of the grown crystals have been studied by PE loop tracer.