Вид документа : Статья из журнала Шифр издания : 54/M 52 Автор(ы) : Melkozerova M. A., Bazuev G. V. Заглавие : Quasi-One-Dimensional Oxides Sr4Co3-xMnxO9 (0≤x≤3): Synthesis and Magnetic Properties Место публикации : Russian Journal of Inorganic Chemistry. - 2006. - Vol. 51, № 3. - С. 362-367: il. Примечания : Bibliogr. : p. 367 (16 ref.) ISSN: 0036-0236 ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): квазиодномерные оксиды--магнитная восприимчивость Аннотация: Sr4Co3 –xMnxO9(0.5≤x≤2) solid solutions (ss), which belong to the family of quasi-one-dimensional oxides A3n+ 3mB3m+nO9m+ 6n (where A is an alkaline-earth element, A' is a 3d element, B is manganese), are prepared using citrate technology. The structures of the phases are described in terms of trigonal space group P321. A full-profile Rietveld analysis shows that the oxides are incommensurate. The structure is described as consisting of two subcells with identical a parameters but different c parameters. Magnetic susceptibility measurements in the range from 2 to 300 K are interpreted on the assumption of the existence of a spin-glass state Доп.точки доступа: Bazuev, G. V.; Базуев Г. В.