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Issue 22, 2015
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Unusual magnetic damping effect in a silver–cobalt ferrite hetero nano-system

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Abstract

The static and dynamic magnetic response of the newly synthesized CoFe2O4–Ag hetero nano-system showed significant enhancement in the effective energy barrier and reduction of the magnetic hardness of CoFe2O4 upon interaction with non-magnetic Ag as compared to neat CoFe2O4. The observed magnetic properties of CoFe2O4–Ag have been dissected in detail using the superparamagnetic Stoner–Wohlfarth and Neel–Arrhenius/Vogel–Fulcher models with the aid of micromagnetic simulations.

Graphical abstract: Unusual magnetic damping effect in a silver–cobalt ferrite hetero nano-system

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Article information


Submitted
20 Nov 2014
Accepted
29 Jan 2015
First published
09 Feb 2015

RSC Adv., 2015,5, 17117-17122
Article type
Communication
Author version available

Unusual magnetic damping effect in a silver–cobalt ferrite hetero nano-system

S. K. Sharma, J. M. Vargas, N. M. Vargas, S. Castillo-Sepúlveda, D. Altbir, K. R. Pirota, R. Zboril, G. Zoppellaro and M. Knobel, RSC Adv., 2015, 5, 17117
DOI: 10.1039/C4RA14960B

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