Mohapatra, J and Mishraz, D K and Singh, S K and Mahato, B and Mitra, A (2013) Synthesis of Nanocrystalline Co Doped ZnO by Chemical Route and Its Magnetic Properties. Nanoscience and Nanotechnology letters, 5/5 . pp. 563-567.
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Co doped nanocrystalline ZnO powders (Zn1-xCoxO; 0.03 <= x <= 0.1) were synthesized by auto-combustion technique. The average particle sizes reduce to 40 nm in comparison to the particle sizes of ZnO synthesized by the same technique. The XRD pattern reveals the absence of any secondary phases like Co or oxides of Co. This investigation suggests the possibility of solid solution of Co in ZnO. The 3% Co doped ZnO shows the diamagnetic behavior whereas other percentage of Co doped ZnO upto 10% shows the room temperature ferromagnetic signature with broadening of M similar to H loop. The decrease in band gap suggests the Co substitution in ZnO matrix
|Uncontrolled Keywords:||Auto-Combustion Technique; Nanocrystalline ZnO; Ferromagnetism; Band Gap|
|Divisions:||Material Science and Technology|
|Deposited By:||INVALID USER|
|Deposited On:||26 Dec 2013 16:40|
|Last Modified:||26 Dec 2013 16:40|
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