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Effect of SnO2 coating on the magnetic properties of nanocrystalline CuFe2O4 |
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| Authors: | R. Kalai Selvan C.O. Augustin D. Prabhakaran |
| Affiliation: | a Central Electrochemical Research Institute, Karaikudi 630 006, India b Department of Physics, Alagappa University, Karaikudi 630 003, India c Clarendon Laboratory, Department of Physics, Oxford University, Oxford OX1 3PU, UK |
| Abstract: | Nanocrystalline CuFe2O4 and CuFe2O4/xSnO2 nanocomposites (x=0, 1, 5 wt%) have been successfully synthesized by one-pot reaction of urea-nitrate combustion method. The transmission electron microscope study reveals that the particle size of the as synthesized CuFe2O4 and CuFe2O4/5 wt%SnO2 are 10 and 20 nm, respectively. The SnO2 coating on the nanocrystalline CuFe2O4 was confirmed from HRTEM studies. The resultant products were sintered at 1100 °C and characterized by XRD and SQUID for compound formation and magnetic studies, respectively. The X-ray diffraction pattern shows the well-defined sharp peak that confirms the phase pure compound formation of tetragonal CuFe2O4. The zero field cooled (ZFC) and field cooled (FC) magnetization was performed using SQUID magnetometer from 2 to 350 K and the magnetic hysteresis measurement was carried out to study the magnetic properties of nanocomposites. |
| Keywords: | 61.10.&minus I 75.50Gg 75.50.Pp 75.60.Ej |
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