Powder x-ray diffraction and Rietveld analysis of (C2H5NH3)2CuCl4 Project supported by the National Natural Science Foundation of China (Grant No. 51925605), Fujian Institute of Innovation, Chinese Academy of Sciences (Grant No. FJCXY18040303), and the Youth Innovation Promotion of the Chinese Academy of Sciences (Grant No. 2013004).,Chinese Physics B

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Powder x-ray diffraction and Rietveld analysis of (C2H5NH3)2CuCl4 Project supported by the National Natural Science Foundation of China (Grant No. 51925605), Fujian Institute of Innovation, Chinese Academy of Sciences (Grant No. FJCXY18040303), and the Youth Innovation Promotion of the Chinese Academy of Sciences (Grant No. 2013004).
Chinese Physics B ( IF 1.7 ) Pub Date : 2021-06-03 , DOI: 10.1088/1674-1056/abee0a
Yi Liu _{1,

2,

3} , Jun Shen ₂ , Zunming Lu ₃ , Baogen Shen ₁ , Liqin Yan _{1,

4}

Affiliation

Structural properties of the organic-inorganic hybrid (C₂H₅NH₃)₂CuCl₄ (EA₂CuCl₄) have been investigated by means of x-ray powder diffraction and Rietveld analysis. A structural phase transition from Pbca to Aba2 occurs at T ₄ = 240 K, which results in a paraelectric–ferroelectric phase transition. The release of the Jahn–Teller distortion with increasing temperature toward T ₄ is revealed by the structural analysis.

更新日期：2021-06-03

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