Вид документа : Статья из журнала Шифр издания : 54/D 26 Автор(ы) : Davydov D. A., Gusev A. I., Rempel A. A. Заглавие : Neutron Diffraction Analysis of a Defect Vanadium Monoxide Close to the Equiatomic Vanadium Monoxide Место публикации : JETP Letters. - 2009. - Vol. 89, № 4. - С. 194-199: il. Примечания : Bibliogr. : p. 198-199 (24 ref.) ISSN: 0021-3640 ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): монооксид ванадия--нестехиометрия Аннотация: Neutron and X-ray diffraction analyses are applied to studying the defect structure of synthesis-temperature quenched and low-temperature annealed vanadium monoxides VO (0.90≤y≤0.97) close to the equiatomic monoxide VO1.0. It is found that the monoxides VO0.90 and VO0.97 contain structural vacancies not only in the oxygen sublattice, but also in the metal sublattice. In addition to the cubic disordered phase VOy with the structure B1, the monoclinic superstructure V14O6 with space group C2/m is present in the synthesized VO0.90 sample and in the annealed VO0.90 and VO0.97 samples. The formation of the V14O6 superstructure is attributed to the ordering of oxygen atoms and nonmetal vacancies in the lattice of the tetragonal solid solution of oxygen in vanadium. No simultaneous ordering of metal and oxygen vacancies in two sublattices of the cubic vanadium is observed Доп.точки доступа: Gusev, A. I.; Гусев Александр Иванович; Rempel, A. A.; Ремпель Андрей Андреевич