B 33 Bazuev, G. V. Magnetic Properties of Er2Mn2/3Re4/3O7, a New Zirkelite-Structure Oxide / G. V. Bazuev, T. I. Chupakhina // Inorganic Materials. - 2009. - Vol. 45, № 4. - P. 409-413 : il. - Bibliogr. : p. 412-413 (19 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): СВОЙСТВА МАГНИТНЫЕ -- ОКСИДЫ -- РЕДКОЗЕМЕЛЬНЫЕ МЕТАЛЛЫ Аннотация: We have studied the magnetic properties of the new compound Er2Mn2/3Re4/3O7 prepared by reacting Er3ReO8, ReO2, MnO, and metallic Re at 1020°C in silica tubes sealed off under vacuum. The compound is shown to have the zirkelite structure with hexagonal cell parameters a = 7.3174(6) Å and c = 17.365(1) Å (sp. gr.P31211, Z = 6). Magnetization data obtained in the range 2–300 K demonstrate that, above ~150 K, its magnetic susceptibility exhibits Curie–Weiss behavior with an effective magnetic moment of 9.50μB. Dynamic magnetic susceptibility measurements point to spin-glass behavior of this compound at low temperatures Полный текст |