Abstract
The permittivity and permeability behaviors of composites made from the multiwalled carbon nanotubes with magnetic impurity Ni and the wax have been studied in 3–18GHz. The unusual permittivity dispersion behaviors have been explained based on the Cole-Cole model and the conductivity contribution model. Permeability is found to have negative imaginary parts within 3–11GHz. The composites are found to show good microwave absorbing performances (reflection loss <−20dB): matching thickness is 1.5mm and absorbing frequency band is 11.6–12.4GHz, and the absorbing performance can be explained by the “geometrical effect.”
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Dates
Type | When |
---|---|
Created | 18 years, 1 month ago (July 23, 2007, 2:53 p.m.) |
Deposited | 2 years, 2 months ago (July 2, 2023, 12:36 p.m.) |
Indexed | 2 weeks, 2 days ago (Aug. 21, 2025, 1:59 p.m.) |
Issued | 18 years, 1 month ago (July 9, 2007) |
Published | 18 years, 1 month ago (July 9, 2007) |
Published Online | 18 years, 1 month ago (July 13, 2007) |
Published Print | 18 years, 1 month ago (July 9, 2007) |
@article{Deng_2007, title={Microwave absorbing performances of multiwalled carbon nanotube composites with negative permeability}, volume={91}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.2755875}, DOI={10.1063/1.2755875}, number={2}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Deng, Longjiang and Han, Mangui}, year={2007}, month=jul }