Hervieu M
CRISMAT, Laboratoire de Cristallographie et Sciences des Matériaux, Université de Caen, France.
J Electron Microsc Tech. 1989 Mar;11(3):202-21. doi: 10.1002/jemt.1060110306.
The properties of oxides may be drastically influenced by their microstructures. Thus the knowledge of nonstoichiometric mechanisms is an essential tool for the conception of new inorganic compounds by solid-state chemist. Through three chosen examples of complex oxides with perovskite-related structure, these points are illustrated. The new families of phosphate tungsten bronzes, the antiferromagnetic AMn1-xFexO3-y, and the copper oxides LCuO3-x (L = Ba, Y, La) were studied by high-resolution electron microscopy (HREM) in order to analyze the mechanisms of nonstoichiometry, the defects of which can modify their physical properties (magnetism or electronic conductivity) and the factors that govern their stabilization.
氧化物的性质可能会受到其微观结构的显著影响。因此，对于非化学计量机制的了解是固态化学家构思新型无机化合物的重要工具。通过三个具有钙钛矿相关结构的复杂氧化物的选定实例，对这些要点进行了说明。为了分析非化学计量机制、其缺陷可改变其物理性质（磁性或电子导电性）的情况以及控制其稳定性的因素，利用高分辨率电子显微镜（HREM）对新型磷酸钨青铜家族、反铁磁体AMn1-xFexO3-y以及铜氧化物LCuO3-x（L = Ba、Y、La）进行了研究。
