Effect of SHI on dielectric and magnetic properties of metal oxidePMMA nanocomposites》.pdf

Nuclear Instruments and Methods in Physics Research B 268 (2010) 3127–3131 Contents lists available at ScienceDirect Nuclear Instruments and Methods in Physics Research B journal homepage: www.else /locate/nimb Effect of SHI on dielectric and magnetic properties of metal oxide/PMMA nanocomposites Chaitali Gavade a, N.L. Singh a,*, D.K. Avasthi b, Alok Banerjee c a Department of Physics, The M.S. University of Baroda, Vadodara 390 002, India b Inter University Accelerator Centre, Aruna Asaf ali Marg, New Delhi 110 067, India c UGC-DAE Consorium for Scientific Research, University Campus, Khandwa Road, Indore 452017, India a r t i c l e i n f o a b s t r a c t Article history: Magnetic nanoparticles embedded in polymer matrices have excellent potential for electromagnetic Received 25 September 2009 device applications like electromagnetic interference suppression, etc. The NiO nanoparticles were syn- Received in revised form 17 May 2010 thesized by simple method. These nanoparticles were dispersed in PMMA matrix and films were pre- Available online 24 May 2010 pared by casting method with varying concentrations of nickel oxide nanoparticles. These films were +3 12 2 irradiated with 50 MeV Li ions at a fluence of 5 10 ions/cm . AC electrical properties of pristine Keywords: and irradiated samples were studied in wide freque