The synthesis and the magnetic properties of Sm _x BiY_2?i>x Fe₅O₁₂ nanoparticles

详细信息    查看全文

• 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

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 ¡ãC and 1000 ¡ãC 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.