N 11 Na0.25Cu0.75VO3: A New Perovskite-like Vanadium Bronze / V. L. Volkov, N. I. Kadyrova, G. S. Zakharova, Yu. G. Zainulin, T. V. D'yachkova, A. P. Tyutyunnik, V. G. Zubkov // Inorganic Materials. - 2004. - Vol. 40, № 2. - P. 184-187 : il. - Bibliogr. : p. 187 (13 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): БРОНЗЫ ВАНАДИЕВЫЕ -- СВОЙСТВА ТЕРМИЧЕСКИЕ Аннотация: A new cubic perovskite-like vanadium bronze of composition Na0.25Cu0.75VO3, with a lattice parameter of 7.2517(1) Å, is obtained by reacting NaVO3, V2O5, and Cu2O at 1100°C and 8 GPa. It exhibits metallic conduction, with a sharp change in resistivity above 200°C, and, presumably, undergoes a phase transition near 280°C. The thermal properties of the new vanadium bronze are studied in air and helium at normal pressure Полный текст |