On the magnetization reversal of the oxide-based exchange spring magnet

Roy, Debangsu and Shivakumara, C and Anil Kumar, PS (2011) On the magnetization reversal of the oxide-based exchange spring magnet. In: Journal of Applied Physics, 109 (7). 07A761-07A761.

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Abstract

The role of the soft phase (Ni0.8Zn0.2Fe2O4) on the magnetization reversal and coercivity mechanism of the Ni0.8Zn0.2Fe2O4/BaFe12O19 nanocomposite has been investigated. The presence of the interacting field and the disorder in the nanocomposite has been confirmed by the variation of Jr/Jr(∞) vs Jd/Jr(∞) and the irreversible magnetization. To understand the relative strength of the pinning and the nucleation, the magnetic viscosity measurement has been done and the thermal activation volume has been estimated. From the Barbier plot and the activation volume measurement, the dominant mechanism governing the magnetization reversal process has been proposed.

Item Type:	Journal Article
Publication:	Journal of Applied Physics
Publisher:	American Institute of Physics
Additional Information:	Copyright of this article belongs to American Institute of Physics.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit Division of Physical & Mathematical Sciences > Physics
Date Deposited:	27 Feb 2012 11:22
Last Modified:	27 Feb 2012 11:22
URI:	http://eprints.iisc.ac.in/id/eprint/42989

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