کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1523993 | 995333 | 2012 | 6 صفحه PDF | دانلود رایگان |
It has been observed that, compared to bulk form, the nanocrystalline α-Fe2O3 is finding application in various areas. Magnetic properties of α-Fe2O3 are found to be influenced by the size of particles and are also sensitive to synthesis method employed for sample preparation. In the present work we have prepared a series of Nd doped α-Fe2−xO3 samples (x = 0.0–0.5) by combustion method, without using any fuel. The analysis of room temperature neutron diffraction patterns shows that all the compounds of the series form in the hematite (α-Fe2O3) structure, space group R−3c. Magnetization measurements show that there is a broad distribution of particle size in the samples. We find that the increase in the Nd content results in the dilution of magnetism of α-Fe2O3. From results we believe that inclusion of Nd in α-Fe2O3 drastically modifies the magnetic properties.
► No fuel has been used in the synthesis of Nd doped α-Fe2O3 by combustion method.
► First time we are referring to Nd doping in α-Fe2O3 material.
► We have discussed about the magnetic frustration in the system because of doping.
► We conclude that Nd doping restricts the agglomeration of α-Fe2O3 nanoparticles.
Journal: Materials Chemistry and Physics - Volume 134, Issue 1, 15 May 2012, Pages 133–138