Modeling of asymmetric giant magnetoimpedance in amorphous ribbons with a surface crystalline layer
arXiv:cond-mat/0503094 · doi:10.1016/j.jmmm.2004.08.028
Abstract
A model describing the asymmetric giant magnetoimpedance (GMI) in field-annealed amorphous ribbons is proposed. It is assumed that the ribbon consists of an inner amorphous core and surface hard magnetic crystalline layers. The model is based on a simultaneous solution of linearizied Maxwell equations and Landau-Lifshitz equation. The coupling between the surface layers and the amorphous core is described in terms of an effective bias field. Analytical expressions for the frequency and field dependences of the ribbon impedance are found. The calculated dependences are in a qualitative agreement with results of experimental studies of the high-frequency asymmetric giant GMI in field-annealed amorphous ribbons.
arXiv comment13 pages, 3 figures
Cited by in corpus (4)
- Off-diagonal magnetoimpedance in field-annealed Co-based amorphous ribbons
- A model for exchange-biased asymmetric giant magneto-impedance in amorphous wires
- Generation of second harmonic in off-diagonal magneto-impedance in Co-based amorphous ribbons
- Influence of microwave annealing on GMI response and magnetization of an amorphous Fe73.5Nb3Cu1Si13.5B9 ribbon