Abstract
Longitudinally driven giant magneto-impedance (GMI) effect in amorphous magnetostrictive Fe 24Co 11.82Ni 47.3Si 1.47B 15 ribbons was investigated. The experimental results showed that the magneto-mechanical resonance of the ribbons had significantly enhanced GMI effect. The strong magneto-mechanical coupling (MMC) interaction resulted in high MI ratio. Maximal GMI ratio of 1532% was obtained in the sample annealed at 340 °C under transverse magnetic field. The results are explained in terms of MMC and resonance of the magnetostrictive materials.
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