Cation and oxygen nonstoichiometry in RMnO3 ( R = La, Nd) bulk samples and thin filmsстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Using injection MOCVD technique a series of epitaxial thin films of La and Nd manganites were prepared. Epitaxial stabilisation of high-pressure phase NdMn7O12 in thin films was observed for low Nd content. For ceramic samples reduced in the flowing Ar with increase of La-vacancy concentration Mn2+ appearance and collapse of static JT-distortion were observed. Oxidation of manganites stabilises vacancies in A-sublattice of perovskite, which results in the broadening of homogeneity area. For La/Mn and Nd/Mn cation-stoichiometric composition 1 : 1 a shift of oxygen solubility boundary was observed.