Mn_1−xZn_xFe₂O₄ ferrites (x = 0.0, 0.25, 0.5, 0.75, 1.0) were prepared by solution-combustion synthesis and characterized by XRD, FTIR, and dielectric measurements. The average crystallite size of synthesized cubic spinels ranged between 25 and 35 nm. The dielectric constant of synthesized ferrites decreased with increasing frequency (10²–10⁷ Hz). The magnitude of changes in dispersion was associated with the Maxwell-Wagner interfacial polarization in terms of phenomenological Koop’s theory.

中文翻译：

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燃烧合成锰锌纳米铁氧体的结构和介电性能

通过溶液燃烧合成法制备了Mn _{1- x} Zn _x Fe ₂ O ₄铁氧体（x = 0.0、0.25、0.5、0.75、1.0），并通过XRD，FTIR和介电测量对其进行了表征。合成立方尖晶石的平均微晶尺寸在25至35 nm之间。合成铁氧体的介电常数随频率（10 ² –10 ⁷ Hz）的增加而降低。就现象学的库普理论而言，色散变化的幅度与麦克斯韦-瓦格纳界面极化有关。