Journal
AIP ADVANCES
Volume 9, Issue 12, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.5129891
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Funding
- Spanish MCIU [PGC2018-099530-B-C31]
- Government of the Basque Country [PIBA 2018-44]
- Elkartek (RTM 4.0) projects
- University of Basque Country under the scheme of Ayuda a Grupos Consolidados [GIU18/192]
- European funding (ERDF and ESF)
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Studies of magnetic properties and GMI effect of amorphous Co-Fe rich microwires reveal that they present GMI effect at GHz frequencies. Magnetic field dependences of GMI effect are affected by the post-processing conditions. In particular, we observed that in Co-Fe rich microwires stress-annealing allows improvement of frequency dependence of GMI ratio at high frequencies. We discussed observed experimental dependences considering both different magnetic structure and the anisotropy in the bulk and near the surface and close analogy between giant magnetoimpedance and ferromagnetic resonance. (C) 2019 Author(s).
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