Microwave Behavior of Polymer Bonded Iron Oxide Nanoparticles

Caprile, Ambra; Coisson, M.; Fiorillo, F.; Kabos, P.; Manu, O. M.; Olivetti, E. S.; Olariu, M. A.; Pasquale, M.; Scarlatache, V. A.

doi:10.1109/TMAG.2012.2200462

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Samples composed of a polymer matrix were loaded with different fractions from 0% to 30% of Fe oxide magnetic nanoparticles with an average size ranging from 5 to 25 nm. The permittivity and permeability of the composites were determined upon a very wide frequency range, spanning from DC to 30 GHz using different methods with overlapping frequency intervals. The nanoparticle content was observed to signiﬁcantly modify the permeability and permittivity behavior of the polymer. The frequency and intensity of both dielectric and ferromagnetic resonances of the composites are clearly affected by the presence of the magnetic nanoparticles, and the composites can be optimized for speciﬁc applications requiring absorption of electromagnetic radiation from the MHz to the GHz range.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2505215

Titolo:	Microwave Behavior of Polymer Bonded Iron Oxide Nanoparticles
Autori:	CAPRILE, AMBRA M. Coisson F. Fiorillo P. Kabos O. M. Manu E. S. Olivetti M. A. Olariu M. Pasquale V. A. Scarlatache mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2012
Rivista:	IEEE TRANSACTIONS ON MAGNETICS
Abstract:	Samples composed of a polymer matrix were loaded with different fractions from 0% to 30% of Fe oxide magnetic nanoparticles with an average size ranging from 5 to 25 nm. The permittivity and permeability of the composites were determined upon a very wide frequency range, spanning from DC to 30 GHz using different methods with overlapping frequency intervals. The nanoparticle content was observed to signiﬁcantly modify the permeability and permittivity behavior of the polymer. The frequency and intensity of both dielectric and ferromagnetic resonances of the composites are clearly affected by the presence of the magnetic nanoparticles, and the composites can be optimized for speciﬁc applications requiring absorption of electromagnetic radiation from the MHz to the GHz range.
Digital Object Identifier (DOI):	10.1109/TMAG.2012.2200462
Appare nelle tipologie:	1.1 Articolo in rivista

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