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.