Enhanced magnetoelectric coupling in Pb(Zr0.52Ti0.48)O3 film-on-CoFe2O4 bulk ceramic composite with LaNiO3 bottom electrode |
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| Authors: | Jing Wang Zheng Li Yang Shen Yuanhua Lin C W Nan |
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| Affiliation: | 1. Department of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, 100084, China
2. Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
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| Abstract: | By chemically depositing a conductive LaNiO3 (LNO) electrode layer onto dense CoFe2O4 (CFO) ceramics, the magnetoelectric (ME) response in Pb(Zr0.52Ti0.48)O3 (PZT)/CFO film-on-substrate system was significantly enhanced. Structural, morphological, ferroelectric, and piezoelectric analysis was performed for the present PZT/LNO/CFO film-electrode-substrate composites, whereby improved electric-related output was demonstrated. It was further shown that the maximum ME coefficient α E31 could reach up to 155 mV/cm Oe, which was about 2.6 times higher than that in PZT film-on-CFO ceramics without bottom electrode layer. Further enhancement of ME response could be expected by preparing high-quality electrode layer with optimal thickness and improved fabrication processing for such film-electrode-substrate composites. |
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