Release Time:2019-03-11  Hits:

Indexed by: Journal Article

Date of Publication: 2008-01-07

Journal: APPLIED PHYSICS LETTERS

Included Journals: ESI高被引论文、EI、SCIE

Volume: 92

Issue: 1

ISSN: 0003-6951

Abstract: Ni/polyaniline (PANi) nanocomposites were prepared by chemical polymerization, and electromagnetic characteristics were then studied at 2-18 GHz. The permittivity of the Ni/PANi nanocomposite presents dual dielectric relaxations with increasing content of PANi to over 15.6 wt %, which is ascribed to a cooperative consequence of the core/shell interfaces and the dielectric PANi shells. Additionally, the permeability presents a strong natural resonance around 2-8 GHz, which is dominant among microwave magnetic loss. The proper matching of the permittivity and the permeability contributes to enhanced microwave absorption. (c) 2008 American Institute of Physics.