The synthesis and the magnetic properties of Sm x BiY2-i>x Fe5O12 nanoparticles

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• 作者：Biao Dong ; Hua Yang ; Lianxiang Yu ; Yuming Cui ; Weiqun Jin and Shouhua Feng
• 刊名：Journal of Materials Science
• 出版年：2007
• 出版时间：July, 2007
• 年：2007
• 卷：42
• 期：13
• 页码：5003-5006
• 全文大小：273 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Materials Science
  Characterization and Evaluation Materials
  Polymer Sciences
  Continuum Mechanics and Mechanics of Materials
  Crystallography
  Mechanics
  
• 出版者：Springer Netherlands
• ISSN：1573-4803

文摘

Sm _x BiY_2–x Fe₅O₁₂ (x = 0, 0.1, 0.2, 0.4, 0.6, 0.8) nanocrystals were fabricated by sol–gel method. Samples were characterized by powder X-ray diffraction (XRD), thermal gravity analysis (TGA) and differential thermal analysis (DTA), transmission electron microscopy (TEM), vibrating sample magnetometer(VSM). The samples were calcined at 850 °C and 1000 °C and the average size of the particles were determined by Scherrer’s formula . In this paper, we discussed the effect of Sm3+ substitution for Y3+ on magnetic properties of BiY₂Fe₅O₁₂. The magnetic properties of Sm _x BiY_2?x Fe₅O₁₂ are decreased with increasing content of Sm ion.