Magnetic and Microstructural Studies on PVA/Co Nanocomposite Prepared by Ion Beam Sputtering Technique

Preeti Sachdev; M. Banerjee; G. S. Mukherjee

doi:10.14429/dsj.64.7332

Preeti Sachdev Devi Ahilya University, Indore
M. Banerjee Devi Ahilya Vishwavidyalaya, Indore
G. S. Mukherjee Defence Scientific Information & Documentation Centre, Delhi

DOI: https://doi.org/10.14429/dsj.64.7332

Keywords: Nanocomposites, Nanomaterials, Vinyl polymer, Transition metal, Magnetic property

Abstract

In this paper, we report the embedment of Cobalt (Co) nanoparticles by ion beam sputtering (IBS) in poly(vinylalcohol) (PVA) substrate to prepare nanocomposite film. The Co film of 5 nm was deposited on PVA by IBStechnique. Formation of nanocrystalline Co with hcp phase is revealed in GIXRD pattern of the film which alsoindicates that there is no change in the crystalline structure of PVA even after sputtering of the metallic nanoparticles.The average particle size of Co nanoparticles as evaluated using Scherer formula is found to be about 2 nm. UVVisabsorption spectrum of the film showed SPR peaks of Co metal in their nano size level embedded in the PVAmatrix system. XPS study confirms the metallic nature of Co MOKE studies show that the nanocomposite film isferromagnetic with Hc׀׀ of. 42.8 Oe.

Defence Science Journal, Vol. 64, No. 3, May 2014, pp. 290-294, DOI:http://dx.doi.org/10.14429/dsj.64.7332

Author Biographies

Preeti Sachdev, Devi Ahilya University, Indore

Ms. Preeti Sachdev is a student of School of Physics, Devi Ahilya University, Indore and obtained her MSc degreein Physics from Devi Ahilya University. After MSc, she joined nanoscience and nanotechnology group of School of Physics of the University for research and has recently submitted thesis on magnetic nanocomposites for the PhD in Physics. She has presented papers in several national and international conferences and has published a few papers in Journals.

M. Banerjee, Devi Ahilya Vishwavidyalaya, Indore

Dr Mandira Banerjee is Professor of Physics in Devi Ahilya University, Indore. Her present research interests are microstuctral, optical and magnetic properties of nano materials and polymers including magnetic nanocomposites. Her visits abroad include visits to CERN and ICTP. She has research publication inreputed National and International Journals. She has successfully completed research projects sponsored by different National Funding Agencies.