Abstract
A model of giant magneto-impedance (GMI) effect in sandwich-structured film has been proposed based on the superposition principle of electromagnetic field. The expression of impedance is derived in the frames of electrodynamics and ferromagnetism. Electromagnetic interaction between the inner layer and outer layer is discussed. Numerical simulation is conducted and the results show that the conductivity of the inner layer is much larger than that of the outer ferromagnetic layer. The skin effect and the maximum GMI effect of the sandwich film may appear at a much lower frequency compared to that of monofilm. The computational results agree with experimental data.
| Original language | English |
|---|---|
| Pages (from-to) | 357-361 |
| Number of pages | 5 |
| Journal | Journal of Shanghai University |
| Volume | 10 |
| Issue number | 4 |
| DOIs | |
| State | Published - Aug 2006 |
Keywords
- GMI effect
- electromagnetic interaction
- sandwich structured film