| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1500349 | Scripta Materialia | 2010 | 4 Pages |
Abstract
Spherical or branch-like architectures assembled from Ni nanocones have been synthesized. Micromagnetic simulation of a single Ni nanocone reveals that it has a unique magnetization structure with a vortex structure at the bottom and a uniform structure at the top. Two resonance peaks at 4.4 and 12.0Â GHz appear in the high-frequency magnetic spectrum. The complex permittivity is very low in the frequency range 1-18Â GHz, which makes the magnetic permeability and the permittivity match well and benefits the microwave absorption.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Fei Ma, Yong Qin, Fei Wang, Desheng Xue,