Please use this identifier to cite or link to this item:
Title: High frequency complex permeability of iron particles in a nonmagnetic matrix
Authors: Wu, L.Z.
Ding, J. 
Jiang, H.B. 
Neo, C.P.
Chen, L.F. 
Ong, C.K. 
Issue Date: 2006
Citation: Wu, L.Z., Ding, J., Jiang, H.B., Neo, C.P., Chen, L.F., Ong, C.K. (2006). High frequency complex permeability of iron particles in a nonmagnetic matrix. Journal of Applied Physics 99 (8) : -. ScholarBank@NUS Repository.
Abstract: The effective permeability (μeff) was measured and calculated for composites consisting of micron- or submicron-sized nanocrystalline iron particles embedded in a nonmagnetic matrix. The intrinsic permeability of iron particles was obtained from the calculation for a random spatial distribution of magnetic domains and its analytical model is derived from the Landau-Lifshitz-Gilbert equation. In the calculation, each grain is assumed to be a single magnetic domain because of its nano size. The effective permeability was calculated using three methods-Bruggeman's effective medium theory, extended Bruggeman's effective medium theory with the consideration of the skin effect, and a simulation method which was developed in the present work. The skin effect was considered in our simulation work. Our simulation agrees well with the experimental data. Our work has shown clearly that the magnetic domain structure with a random spatial distribution of magnetic easy axes and the skin effect need to be considered to calculate the complex permeability of polycrystalline magnetic materials. © 2006 American Institute of Physics.
Source Title: Journal of Applied Physics
ISSN: 00218979
DOI: 10.1063/1.2190719
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Sep 21, 2022


checked on Sep 21, 2022

Page view(s)

checked on Sep 22, 2022

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.