The effect of LaNiO_lus-plus">3 thickness on the magnetoelectric response of Pb(Zr_{lus-plus">0.52}Ti_{lus-plus">0.48})O_lus-plus">3 film-on-CoFe_lus-plus">2O_lus-plus">4 ceramic composites

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• 作者：Jing Wang ; Xia Wu ; Chaoyong Deng ; Kongjun Zhu ; Jinhao Qiu
• 刊名：Journal of Materials Science
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：52
• 期：1
• 页码：541-549
• 全文大小：1,223 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Materials Science
  Characterization and Evaluation Materials
  Polymer Sciences
  Continuum Mechanics and Mechanics of Materials
  Crystallography
  Mechanics
  
• 出版者：Springer Netherlands
• ISSN：1573-4803
• 卷排序：52

文摘

A magnetoelectric composite of Pb(Zr_0.52Ti_0.48)O₃ film-on-CoFe₂O₄ ceramic was prepared by spin-coating Pb(Zr_0.52Ti_0.48)O₃ films of 300 nm in thickness on the LaNiO₃-buffered highly dense CoFe₂O₄ ceramics. The X-ray diffraction, ferroelectric loops, piezoelectric curves, and magnetoelectric coupling effects were all measured at room temperature to investigate the effect of LaNiO₃ thickness on the magnetoelectric response of the composites. The introduction of the metallic oxide LaNiO₃ efficiently enhanced the magnetoelectric coefficient α_E by improving the electric-related outputs. However, too thick LaNiO₃ layer would also hinder the strain (stress) transferring across the interface between the Pb(Zr_0.52Ti_0.48)O₃ and CoFe₂O₄ phases. A peak α_E value was obtained in the sample with a LaNiO₃ thickness of about 60 nm, which was 2.5 times larger than that in the composite of Pb(Zr_0.52Ti_0.48)O₃ film on the CoFe₂O₄ ceramic without the LaNiO₃ layer. Further enhancement could be anticipated by optimizing the LaNiO₃ layer and/or Pb(Zr_0.52Ti_0.48)O₃ films.