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首页> 外文期刊>Physica, B. Condensed Matter >Structural, electrical conduction and magnetoelectric properties of y (Ni(0.3)Cu(0.4)Zn(0.3)Fe(2)o(4))+(1-y) [50% batio(3)+50% PZT] ME composites
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Structural, electrical conduction and magnetoelectric properties of y (Ni(0.3)Cu(0.4)Zn(0.3)Fe(2)o(4))+(1-y) [50% batio(3)+50% PZT] ME composites

机译：y（Ni（0.3）Cu（0.4）Zn（0.3）Fe（2）o（4））+（1-y）[50％batio（3）+ 50％PZT] ME的结构，导电和磁电性能复合材料

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摘要

The particulate composites containing NiCuZn ferrite, barium titanate (BaTiO3) and lead zirconate titanate (PZT) as constituents having the general formula of the system y (Ni0.3Cu0.4Zn0.3Fe2O4)+(1-y) (50% BaTiO3+50% PZT) with y=0.15, 0.30, 0.45 were prepared by ceramic method. The spinel and tetragonal phase formation of ferrite and ferroelectrics, respectively, was confirmed by X-ray diffraction techniques. The dc resistivity measurements were made as a function of temperature. The variation of dielectric constant ((epsilon) over dot) and tan delta with frequency was studied in the range 20 Hz-1 MHz. It shows dielectric dispersion in lower frequency region and remains almost constant at higher frequencies. The studies of ac conductivity indicate small polarons type conduction. The static magnetoelectric sensitivity factor was measured as a function of magnetic field. All the composites show decrease in ME (Magnetoelectric) coefficient with increase in magnetic field.
机译：包含NiCuZn铁氧体，钛酸钡（BaTiO3）和锆酸钛酸铅（PZT）作为组成的通式y系（Ni0.3Cu0.4Zn0.3Fe2O4）+（1-y）（50％BaTiO3 + 50通过陶瓷法制备y ＝ 0.15、0.30、0.45的％PZT）。通过X射线衍射技术证实了铁氧体和铁电体的尖晶石相和四方相的形成。直流电阻率测量值是温度的函数。在20 Hz-1 MHz范围内研究了介电常数（点上的ε）和正切增量随频率的变化。它显示出较低频率区域的介电色散，在较高频率下几乎保持恒定。交流电导率的研究表明，极化子类型较小。测量了静磁电灵敏度因子与磁场的关系。随着磁场的增加，所有复合材料的ME（磁电）系数均降低。

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