M 52 Melkozerova, M. A. EPR Study of Quasi-One-Dimensional Complex OxidesA3n + 3m Mn3m + nO9m + 6n (A–Sr, Ba; A'–Mg, Zn, Cu) / M. A. Melkozerova, E. V. Zabolotskaya, G. V. Bazuev // Bulletin of the Russian Academy of Sciences: Physics. - 2009. - Vol. 73, № 9. - P. 1307-1311 : il. - Bibliogr. : p. 1310-1311 (19 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ОКСИДЫ КОМПЛЕКСНЫЕ -- ЭЛЕКТРОННЫЙ ПАРАМАГНИТНЫЙ РЕЗОНАНС -- ЭПР -- МАНГАНИТЫ Аннотация: Exchange interactions in the quasi-one-dimensional complex oxides Sr4MgMn2O9, Ba6MgMn4O15, Ba8MgMn6O21, and Ba9M2Mn5O21 (M–Cu, Zn, Mg) have been studied by electron paramagnetic resonance. The temperature dependence of the spectral parameters showed that the exchange interaction is antiferromagnetic and occurs mainly inside the manganese-containing groups and to a lesser extent between them \\\\Expert2\\nbo\\Bulletin of the Russian Academy of Sciences Physics\\2009, V. 73, N 9, P.1307-1311.pdf |