Magnetic properties of rare earth ferro- and aluminoborates RM3(BO3)4 (M = Fe or Al and R = Y, Gd, Er, or Dy)статья
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Дата последнего поиска статьи во внешних источниках: 31 октября 2014 г.
Аннотация:A temperature dependence of the magnetic susceptibility [χ(T)] of rare-earth borates RFe3(BO3)4 and RAl3(BO3)4 (R = Y, Gd, Er, or Dy) is measured by the Faraday method at temperatures 20–850°C. Nonlinear anomalies observed in the dependences χ–1(T) are caused by structural transitions. It is established that the dependences χ–1(T) obey a linear Curie–Weiss law for each phase. The Curie temperatures and the magnetic moments corresponding to the chemical formula unit of crystals are calculated.