Radiation Stimulated Permanent Alterations in Structural and Electrical Properties of Core-Shell Mn-Zn Ferrite Nanoparticles

Abstract:

A series of core-shell type nanoparticle samples of Mn_xZn_1-xFe₂O₄ were prepared by auto-combustion technique with x=0.3, 0.5, 0.7, 1.0. Subsequent to the structural and electrical property investigation the samples were irradiated with gamma radiation for different time intervals using ⁶⁰Co source. A significant decrease in lattice parameter and particle size was observed in gamma irradiated samples. Electrical resistivity of irradiated samples was found to decrease with the increase in γ-radiation dose. Frequency and temperature dependent dielectric constant and dissipation constant measurements carried out showed multifold enhancement of dielectric constant with pragmatic increase in dielectric loss, in γ-irradiated samples.

• Periodical: Journal of Nano Research (Volume 24)
• Pages: 194-202
• DOI: https://doi.org/10.4028/www.scientific.net/JNanoR.24.194
• Online since: September 2013
• Authors: P.P. Naik, R.B. Tangsali, B. Sonaye, S. Sugur
• Keywords: Electrical Properties, Magnetic, Nanoparticle, Structure, γ-Radiation

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