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Magnetic properties of nanocrystalline Mn1-xZnxFe2O4

Angadi, Jagadeesha and Rudraswamy, B and Matteppanavar, Shidaling and Bharathi, P and Praveena, K (2015) Magnetic properties of nanocrystalline Mn1-xZnxFe2O4. In: 59th DAE Solid State Physics Symposium, DEC 16-20, 2014, VIT Univ, Vellore, INDIA.

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Official URL: http://dx.doi.org/10.1063/1.4917655

Abstract

Nanocrystalline Mn1-xZnxFe2O4 (x = 0, 0.1, 0.3, 0.5, 0.7, 0.9, 1.0) were prepared via solution combustion method. Structural and morphology of Mn-Zn ferrites were characterized by X-ray diffraction (XRD) and Transmission Electron Microscopy (TEM). Magnetic properties were carried out using vibrating sample magnetometer (VSM) at room temperature (RT) up to maximum field of 1.5 T. The room temperature real and imaginary part of permeability(mu' and mu'') has been measured in the frequency range of 1MHz to 1GHz. The room temperature XRD patterns exhibits the spinel cubic (Fm-3m) structure and broad XRD patterns shows the presence of nanoparticles. The imaginary part of the permeability (mu'') gradually increased with the frequency and took a broad maximum at a certain frequency, where the real permeability (mu') rapidly decreases, which is known as natural resonance. The coercive filed values are low, hence probability of domain rotation is also lower and the magnetization decreased with zinc substitution. The values of mu' and mu'' increases sharply, attained a maximum and then decreases with zinc content.

Item Type: Conference Proceedings
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Additional Information: Copy right for this article belongs to the AMER INST PHYSICS, 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
Keywords: Nanocrsytalline ferrites; Magnetization; Permittivity; Permeability
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 14 Jan 2016 04:28
Last Modified: 14 Jan 2016 04:28
URI: http://eprints.iisc.ernet.in/id/eprint/53108

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