Published July 21, 2005 | Version v1
Journal article Metadata-only

Complex permittivity and permeability of metallic magnetic granular composites at microwave frequencies

Creators

  • 1. Department of Electronic Science and Engineering, State Key Lab of Modern Acoustics, Nanjing University, Nanjing 210093 (China)
  • 2. Department of Physics and Astronomy, University of Delaware, Newark, DE 19716 (United States)

Description

The complex permittivity and permeability of composites consisting of metallic magnetic particles (carbonyl-iron-particles (CIPs)) embedded in a dielectric matrix (epoxy resin) have been studied at microwave frequencies. Composites with different volume fraction (5-60%) of magnetic particles have been fabricated and their complex permittivity and permeability have been measured. The concentration dependence of permittivity and permeability has been analysed using various effective medium theories. We have found that only the general Bruggeman formula describes composites very well over a wide range of concentrations used in this study. The extracted permittivity and permeability of CIPs are consistent with those reported

Availability note (English)

Available online at http://stacks.iop.org/0022-3727/38/2302/d5_14_002.pdf or at the Web site for the Journal of Physics. D, Applied Physics (ISSN 1361-6463) http://www.iop.org/

Additional details

Identifiers

URL
http://stacks.iop.org/0022-3727/38/2302/d5_14_002.pdf; http://www.iop.org/;
DOI
10.1088/0022-3727/38/14/002;
PII
S0022-3727(05)92787-3;

Publishing Information

Journal Title
Journal of Physics. D, Applied Physics
Journal Volume
38
Journal Issue
14
Journal Page Range
p. 2302-2305
ISSN
0022-3727
CODEN
JPAPBE

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
36101500
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S36: MATERIALS SCIENCE;
Descriptors DEI
CARBONYLS; COMPOSITE MATERIALS; DIELECTRIC MATERIALS; EPOXIDES; IRON; MICROWAVE RADIATION; PARTICLES; PERMEABILITY; PERMITTIVITY; RESINS
Descriptors DEC
DIELECTRIC PROPERTIES; ELECTRICAL PROPERTIES; ELECTROMAGNETIC RADIATION; ELEMENTS; MATERIALS; METALS; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; ORGANIC POLYMERS; PETROCHEMICALS; PETROLEUM PRODUCTS; PHYSICAL PROPERTIES; POLYMERS; RADIATIONS; TRANSITION ELEMENTS