Abstract Present research work describes in detail the investigations related with the multiferroic properties of (1-x)Ba0·85Ca0·15Ti0·9Zr0·1O3-xC0.6Zn0·4Fe1·7Mn0·3O4 [(1-x)BCZT-xCZFMO]; x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5 and 1.0 composites, synthesized by conventional solid-state route. X-Ray Diffraction (XRD) patterns have predicted the perovskite tetragonal and spinel cubic structures of BCZT and CZFMO, respectively. Nearly spherical grains of BCZT and CZFMO have been observed through the Scanning Electron Microscopy (SEM) images, whereas non-uniform plate-like morphology has been indicated for the composites. The lossy behavior of composites with the increase in ferrite concentration is evident from the Polarization versus applied electric field (P-E) hysteresis loops. The well-saturated magnetization versus applied magnetic field (M-H) hysteresis loops has been obtained for the composites. In temperature dependent dielectric measurements, ferroelectric to paraelectric phase transition of BCZT is affected by the concentration of the ferrite phase, indicating the presence of magneto-electric coupling effect (ME) in composites. Further, the composites have also shown magnetodielectric (MD) response, which provides a pathway to quantify ME coupling by evaluating various coupling coefficients. The maximum values of MD coefficient, ME coupling coefficient (γ), ME voltage susceptibility (χE) and ME susceptibility (χ) have been found to be −0.72%, 2.372 × 10−4 (g/emu)2, −2.415 mV/cm.Oe and −1.397 × 10−11 s/m, respectively for x = 0.1 composite, which has been found to decrease at higher ferrite concentrations.

中文翻译：

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无铅 (1-x)BCZT-xCZFMO 基颗粒陶瓷复合材料的多铁性研究

摘要 目前的研究工作详细描述了与(1-x)Ba0·85Ca0·15Ti0·9Zr0·1O3-xC0.6Zn0·4Fe1·7Mn0·3O4 [(1-x)BCZT-xCZFMO]; x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5 和 1.0 复合材料，通过常规固态途径合成。X 射线衍射 (XRD) 图案分别预测了 BCZT 和 CZFMO 的钙钛矿四方和尖晶石立方结构。通过扫描电子显微镜 (SEM) 图像观察到 BCZT 和 CZFMO 的近球形晶粒，而复合材料则显示出不均匀的板状形态。从极化与外加电场 (PE) 磁滞回线中可以明显看出随着铁氧体浓度增加复合材料的损耗行为。已获得复合材料的饱和磁化强度与外加磁场 (MH) 磁滞回线。在温度相关的介电测量中，BCZT 的铁电到顺电相变受铁氧体相浓度的影响，表明复合材料中存在磁电耦合效应 (ME)。此外，复合材料还显示出磁介电 (MD) 响应，这提供了一种通过评估各种耦合系数来量化 ME 耦合的途径。已发现MD系数、ME耦合系数(γ)、ME电压磁化率(χE)和ME磁化率(χ)的最大值为-0.72%, 2.372 × 10−4 (g/emu)2, -2.415 mV /cm.Oe 和 -1.397 × 10-11 s/m，分别对于 x = 0.1 复合材料，已发现在较高的铁素体浓度下会降低。