Structural, Thermal, and Magnetic Properties of Cu-doped BiFeO3

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• 作者：Yongtao Li (1) (2)
  Yunwu Fan (1)
  Hongguang Zhang (1)
  Xiaoxue Teng (1)
  Xueguang Dong (2)
  Hao Liu (2)
  Xiaopeng Ge (2)
  Qi Li (2)
  Wei Chen (1)
  Xing’ao Li (1)
  Zhiyong Ge (1)
  
• 关键词：Multiferroic materials ; XRD ; Magnetic properties ; SEM ; Raman
• 刊名：Journal of Superconductivity Incorporating Novel Magnetism
• 出版年：2014
• 出版时间：May 2014
• 年：2014
• 卷：27
• 期：5
• 页码：1239-1243
• 全文大小：578 KB
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• 作者单位：Yongtao Li (1) (2)
  Yunwu Fan (1)
  Hongguang Zhang (1)
  Xiaoxue Teng (1)
  Xueguang Dong (2)
  Hao Liu (2)
  Xiaopeng Ge (2)
  Qi Li (2)
  Wei Chen (1)
  Xing’ao Li (1)
  Zhiyong Ge (1)
  
  1. Experimental Teaching Center of Physics, Nanjing University of Posts and Telecommunications, Nanjing, 210046, P.R. China
  2. Department of Physics, Southeast University, Nanjing, 211189, P.R. China
  
• ISSN：1557-1947

文摘

A polycrystalline Bi(Fe0.95Cu0.05)O3 sample has been prepared by sol–gel method. The analysis of X-ray diffraction patterns demonstrates that the sample exhibits a rhombohedral structure. Compared with BiFeO3, the magnetic behavior of Bi(Fe0.95Cu0.05)O3 sample almost does not change. Raman data analysis indicates that the lattice distortion exists in a Bi(Fe0.95Cu0.05)O3 sample. The results of differential scanning calorimetry demonstrate that Cu2+ ion doping affects the magnetic order and decreases the Néel temperature of BiFeO3. The lattice distortion and the counteractive role between the intervening on the spin chains of Fe ions make the magnetic properties of Cu-doped BiFeO3 not increase.