Microwave absorption and Mössbauer studies of Fe3O4 nanoparticles

Materials consisting of nanometer-sized magnetic particles are currently the subject of intensive research activities. Especially, much attention has been paid to their promising features for microwave magnetic properties. Well dispersed Fe 3 O 4 nanoparticles of 30 nm have been synthesized by oxidi...

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Bibliographic Details
Published inHyperfine interactions Vol. 189; no. 1-3; pp. 131 - 136
Main Authors Zheng, Hong, Yang, Yong, Zhou, Mingji, Li, Fashen
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.02.2009
Subjects
Atomic
Condensed Matter Physics
Hadrons
Heavy Ions
Molecular
Nuclear Physics
Optical and Plasma Physics
Physics
Physics and Astronomy
Surfaces and Interfaces
Thin Films
Microwave magnetic permeability
Nanoparticle
Mössbauer effect
Fe
O
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Summary:Materials consisting of nanometer-sized magnetic particles are currently the subject of intensive research activities. Especially, much attention has been paid to their promising features for microwave magnetic properties. Well dispersed Fe 3 O 4 nanoparticles of 30 nm have been synthesized by oxidization method with NaNO 2 , and the microwave magnetic properties of the composites have been studied. The real and imaginary part of relative permittivity remained low and nearly constant in the region of 0.1–18 GHz, respectively. As a result, the resin composites having a thickness of 2.0–3.2 mm, and containing 20 vol% Fe 3 O 4 in the form of nanoparticles with an average diameter of 30 nm, exhibited excellent electromagnetic wave absorption properties in the frequency range of 4.5–12.0 GHz.
ISSN:0304-3843
1572-9540
DOI:10.1007/s10751-009-9938-3