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Decrypting the TEM images for deciphering the microstructural code of complex oxides

机译:解密TEM图像以解密复杂氧化物的微观结构代码

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The knowledge of the structure of the real solids is required for achieving the desired architectures in the research of new materials and/or optimizing the relationships between structure and properties. Understanding complex oxides needs accurate characterization at different length scales and the combined application of all solid-state techniques. Deciphering the relationships between all this information provides codes that allow the identification of the different structural levels, their roles and the way they interact. These step-by-step routes are illustrated through two basic mechanisms of solid-state chemistry: to determine the building units of one complex oxide in order to predict the existence of other arrangements on the one hand and to correlate complex ordering phenomena, such as those involving charges, orbitals and spins of manganese atoms in perovskite-type manganites on the other hand.
机译:在新材料的研究中和/或优化结构与性能之间的关系时,要获得所需的结构,就需要了解实心固体的结构。了解复杂的氧化物需要在不同的长度范围内进行准确的表征,以及所有固态技术的组合应用。解密所有这些信息之间的关系提供了可以识别不同结构级别,它们的角色和交互方式的代码。这些循序渐进的路线通过固态化学的两个基本机理进行了说明:确定一种复合氧化物的结构单元,以便一方面预测其他结构的存在并关联复杂的有序现象,例如另一方面,它们涉及钙钛矿型锰矿中锰原子的电荷,轨道和自旋。

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