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Role of magnetic anisotropy in the magnetoimpedance effect in amorphous alloys
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1995
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EngineeringMagnetic ResonanceMagnetic MaterialsMagnetoresistanceMagnetismLarge Mi EffectMagnetic AnisotropyAnisotropic MaterialMaterials SciencePhysicsMagnetoelasticityMagnetoimpedance EffectAmorphous Co70.4fe4.6si15b10 RibbonsMagnetic MaterialMicrostructureFerromagnetismNatural SciencesTransverse Magnetic AnisotropyAmorphous AlloysCondensed Matter PhysicsApplied PhysicsMagnetic PropertyAmorphous Solid
The magnetoimpedance (MI) effect of amorphous Co70.4Fe4.6Si15B10 ribbons, subjected to different annealing conditions with and without an external field, has been measured up to a frequency of 100 kHz. We show that the large MI effect is the result of transverse magnetic anisotropy, which is present in the as-cast and the suitably field-annealed samples.