Influence of microstructure and magnetizing mechanisms on magnetic complex permeability (imaginary part) of a Cu-doped Ni–Zn polycrystalline ferrite

The complex permeability of the Cu-doped Ni–Zn polycrystalline ferrites is strongly dependent on microstructure, particularly on relative density (ϕ) and average grain size (G), as it has been shown in a previous study developed at a constant angular frequency (107 Hz). In this study, the previous m...

Full description

Saved in:
Bibliographic Details
Published inCeramics international Vol. 47; no. 20; pp. 29504 - 29508
Main Authors Barba-Juan, A., Vicente, N., Mormeneo-Segarra, A., Clausell-Terol, C.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 15.10.2021
Subjects
Complex magnetic permeability
Domain-wall motion
Magnetizing mechanism
Microstructure
Ni-Zn ferrites
Spin rotation
Magnetizing mechanism
Spin rotation
Microstructure
Domain-wall motion
Complex magnetic permeability
Ni-Zn ferrites
Online AccessGet full text

Cover

More Information
Summary:The complex permeability of the Cu-doped Ni–Zn polycrystalline ferrites is strongly dependent on microstructure, particularly on relative density (ϕ) and average grain size (G), as it has been shown in a previous study developed at a constant angular frequency (107 Hz). In this study, the previous microstructural model proposed has been extended to an angular frequency range (from 106 to 109 Hz) demonstrating its validity and reliability. In addition, domain-wall motion and spin rotation contributions to magnetic permeability have been individually considered in the mathematical model, highlighting the relative influence of each magnetizing mechanism at different angular frequencies.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2021.07.119