M 17 Magnetic vacancies, ordering, and properties of bismuth-substituted rare-earth ferrite garnets / Yu. P. Vorob'ev, V. G. Bamburov, A. S. Vinogradova-Zhabrova, N. I. Lobachevskaya // Russian Chemical Bulletin. - 1999. - Vol. 48, № 6. - P1028-1036 : il. - Bibliogr. : p. 1036 (31 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ФЕРРИТЫ -- ТЕРМОДИНАМИКА -- РЕДКОЗЕМЕЛЬНЫЕ ГРАНАТЫ Аннотация: Thermodynamic analysis of the garnet formation processes and crystal chemical simulation of the filling of a gament crystal lattice with cations were used to identify the types of defects and to estimate their numbers and contributions to the magnetic properties of bismuth-substituted rare-earth scandium-containing ferrogallogarnets. The effective magnetic moments of the garnets were calculated with allowance for the HS- and LS-states of paramagnetic ions. A classification of crystal defects was proposed. Principles and postulates suitable for any multisublattice and multicomponent crystals were formulated Полный текст |