Vijay Sharma - nanoparticles

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  Publication Details (including relevant citation   information): Sharma, VK, Najim, M, Srivastava, AK,   Varma, GD, JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,   2012, 324 (5), pp 683-689

  Abstract: We report on the structural and   magnetic properties of the nanocrystalline samples of   Zn(1-x)(TM)(x)O (TM=Mn, Co and x=0.02, 0.05, 0.10) synthesized by   chemical vapor deposition (CVD) method using different carrier   gases i.e., Argon (Ar), Oxygen (O(2)) and Nitrogen (N(2)). X-ray   diffraction (XRD) and transmission electron microscopy (TEM)   studies reveal wurtzite structure of pure ZnO in all the samples   and particle sizes in the range of 15-40 nm. No evidence of any   secondary phases having room temperature ferromagnetic behavior   has been observed through XRD and TEM studies. Magnetic   measurements reveal presence of mixed magnetic phases in the   samples, which may be the reason for the low saturation   magnetization in the nanoparticles. (C) 2011 Elsevier B.V. All   rights reserved.

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