Abstract The CaCu3Mn4O12 (CCMO) ceramic was successfully synthesized through the chemical route. The phase formation was confirmed by the X-ray diffraction pattern. Thermogravimetric (TGA), FT-IR, SEM, TEM, EDX, and XPS analysis were performed for investigation of the thermal behavior, phase identification, microstructural analysis, elemental analysis and oxidation state of the CCMO ceramic respectively. FT-IR spectra confirmed the existence of MnO6 octahedral in body-centered cubic (BCC) complex perovskite oxide that resembles the CaCu3Ti4O12 structure. The average particle size was observed by TEM in the range between 100 and 200 nm. AFM shows the average roughness of the surface was found to be in the range of 30 ± 5 nm. XPS and EDX studies confirmed the purity and oxidation state of the CCMO ceramic. The synthesized material shows very interesting unique Griffith’s phase (TG) results that arise disorder in magnetic susceptibility in which ferromagnetic transition was to be observed in the paramagnetic region.

中文翻译：

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观察通过化学途径合成的四重钙钛矿氧化物 CaCu3Mn4O12 (CCMO) 中不寻常的格里菲斯相行为

摘要 通过化学途径成功合成了CaCu3Mn4O12（CCMO）陶瓷。X射线衍射图证实了相的形成。分别进行了热重 (TGA)、FT-IR、SEM、TEM、EDX 和 XPS 分析，以研究 CCMO 陶瓷的热行为、相识别、显微结构分析、元素分析和氧化态。FT-IR 光谱证实了体心立方 (BCC) 复合钙钛矿氧化物中存在 MnO6 八面体，类似于 CaCu3Ti4O12 结构。通过 TEM 观察到的平均粒径在 100 和 200 nm 之间。AFM 显示表面的平均粗糙度被发现在 30 ± 5 nm 的范围内。XPS 和 EDX 研究证实了 CCMO 陶瓷的纯度和氧化态。