Journal
IEEE MAGNETICS LETTERS
Volume 6, Issue -, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LMAG.2015.2397877
Keywords
Magneto-electronics; giant magnetoimpedance effect; magnetic anisotropy; soft magnetic materials; microwires
Funding
- Spanish MINECO [MAT2013-47231-C2-1-P]
- Basque Government [S-PE13UN014, S-PE13UN007]
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We studied the giant magnetoimpedance (GMI) effect and magnetic properties of amorphous Co-rich magnetic microwires prepared by the Taylor-Ulitovski technique. The magnetic field dependence of impedance and the magnetic anisotropy fields can be tailored through the magnetoelastic anisotropy by controllable change of the internal stresses. Co-rich microwires exhibit high (above 300%) GMI effect even at gigahertz frequencies. Features of the high-frequency GMI effect were analyzed using a ferromagnetic resonance-like approximation.
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