Thickness and coupling effects in bilayered multiferroic CoFe2O4/Pb(Zr0.52Ti0.48)O3 thin films
Thickness and coupling effects in bilayered multiferroic CoFe2O4/Pb(Zr0.52Ti0.48)O3 thin films
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DOI：
10.1063/1.2940014
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发表时间：
2008-06
影响因子：
3.2
通讯作者：
C. H. Sim;A. Pan;Junyong Wang
中科院分区：
文献类型：
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作者：
C. H. Sim;A. Pan;Junyong Wang
为了研究优化的 PZT 层厚度以及厚度对异质层多铁性薄膜的磁和铁电行为的影响，制备了四种具有增加 PZT 成分层厚度的 CoFe2O4/Pb(Zr0.52Ti0.48)O3 (CFO/PZT) 双层薄膜。这些异质结构薄膜是通过旋涂和射频溅射的组合途径制造的。磁性 CFO 和铁电 PZT 相均成功保留在异质结构薄膜中。观察到 CFO/PZT 薄膜的饱和磁化强度 (Ms) 得到改善，并且这种增强随着 PZT 层厚度的增加而增加。铁电和介电测量都表明存在由铁电/磁性界面引起的界面空间电荷极化。在制备的包含不同 PZT 层厚度的多铁性薄膜中，由六个 PZT 组成层组成的薄膜表现出最高的 Ms 值...
Four CoFe2O4/Pb(Zr0.52Ti0.48)O3 (CFO/PZT) bilayered thin films with increasing PZT constituent layer thicknesses have been fabricated in order to investigate the optimized PZT layer thickness and the thickness effect on the magnetic and ferroelectric behaviors of the heterolayered multiferroic thin films. These heterostructured thin films were fabricated via a combined route of spin coating and rf sputtering. Both magnetic CFO and ferroelectric PZT phases were successfully retained in the heterostructured thin film. The improved saturation magnetization (Ms) of the CFO/PZT thin films has been observed and the enhancement increases with increasing PZT layer thickness. Both ferroelectric and dielectric measurements suggest the presence of interfacial space charge polarization arising from the ferroelectric/magnetic interface. Among the multiferroic thin films containing different PZT layer thicknesses fabricated, the thin film that consisted of six PZT constituent layers demonstrated the highest Ms value of...