Investigation of bixbyite type scandium oxides involving a magnetic cation:  (0≤x≤1)

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• 作者：Yohann Bré ; ard^a ; ^{yohann.breard@ensicaen.fr} ; Helmer Fjellvå ; g^b ; Bj&#xf8 ; rn Hauback^c
• 关键词：A. Iron oxides ; C. Bixbyite ; D. Magnetic dilution
• 刊名：Solid State Communications
• 出版年：2011
• 出版时间：February 2011
• 年：2011
• 卷：151
• 期：3
• 页码：223-226
• 全文大小：607 K

文摘

Presently, the crystal structure and magnetic properties of Sc_2−xFe_xO₃ samples are described for 0.0≤x≤1.0. The cubic bixbyite structure (space group: Ia-3) prevails for all compositions. Excellent homogeneity of the samples was confirmed by energy dispersive spectroscopy analysis performed with a Transmission Electron Microscope. The crystal structure of ScFeO₃ was determined by combined refinements of powder X-ray and neutron diffraction data. The magnetic behavior is typical of a frustrated system and no long range order prevails at 9 K.