Multi-Resonance Mechanism Study for Nanocrystalline Iron/Paraffin Composites Based on Exchange Energy and Bounds in Gigahertz

Author

Zhou, Pei Heng ; Deng, Long Jiang

Author_Institution

State Key Lab. of Electron. Thin Films & Integrated Devices, Univ. of Electron. Sci. & Technol. of China, Chengdu

Volume

45

Issue

2

fYear

2009

Firstpage

663

Lastpage

665

Abstract

Multi-resonance phenomenon of nanocrystalline iron/paraffin composites is studied based on the general mechanism for each component. Associated with bound relation between the dynamic magnetization and static physical parameters, the relationship between the microwave energy loss and the nature of material is established. It is found that the microwave performance of composites is determined by the competition between natural resonance and exchange resonance, which can be controlled by material´s microstructure and geometry features. With this approach, the design of multi-resonance is accessible.

Keywords

crystal microstructure; exchange interactions (electron); iron; magnetic permeability; magnetic resonance; magnetisation; nanocomposites; organic compounds; Fe; dynamic magnetization; exchange energy; exchange resonance; magnetic permeability; microstructure; microwave energy loss; multiresonance mechanism; nanocrystalline iron-paraffin composites; static physical parameters; Magnetic resonance; microwave; permeability;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2008.2010467

Filename

4782110