Domain structure in Joule-heated CoFeSiB glass-covered amorphous microwires probed by magnetoimpedance and ferromagnetic resonance

Silva, R. B. da; Carara, M.; Andrade, Ankilma do Nascimento; Severino, Andrea; Sommer, R.L.

doi:10.1063/1.1608474

Cited by 6 publications

(2 citation statements)

References 16 publications

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“…9b and c, I). The uniformity and consistency of circumferential domains increased with the annealing units accumulating, while the diameters and defects of domains decreased, which is owing to co-action among structural relaxation, enhancement of degree of nano-crystallization and increase of circular surface magnetic field generated by ADA [26].…”

Section: Resultsmentioning

confidence: 94%

Influence of microstructure evolution on GMI properties and magnetic domains of melt-extracted Zr-doped amorphous wires with accumulated DC annealing

Jiang

Xing

Liu

et al. 2015

Journal of Alloys and Compounds

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Section: Resultsmentioning

confidence: 94%

Influence of microstructure evolution on GMI properties and magnetic domains of melt-extracted Zr-doped amorphous wires with accumulated DC annealing

Jiang

Xing

Liu

et al. 2015

Journal of Alloys and Compounds

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“…The real (R) and imaginary (X) components of Z were simultaneously acquired at a given axial magnetic field value. From each impedance spectrum and applied magnetic field, the resonance frequency (f r ) was obtained and the FMR dispersion relation (DR) constructed, as described in [12].…”

Section: Methodsmentioning

confidence: 99%

Comparison between ac and dc current annealing in CoFeSiB glass-covered amorphous microwires

Sossmeier¹,

Bohn²,

Chiriac³

et al. 2007

J. Phys. D: Appl. Phys.

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In this work, we present a study on the magnetic properties of Joule-heated CoFeSiB glass-covered amorphous microwires under applied stress. A comparison between the magnetic properties of four samples is made: (i) as cast, Joule-heated under (ii) dc current or ac current of (iii) 100 Hz or (iv) 500 Hz. The stress modifies the anisotropy and the domain structure in such a way that it can be studied through magnetoimpedance measurements and ferromagnetic resonance (FMR) dispersion relations (DR) extracted from them. From the fitting of the FMR DR, the magnitude and the orientation of the transverse anisotropy field, as well as an insight into the micromagnetic structure of the microwires were obtained. It was concluded that longitudinal anisotropy dominates the microwire behaviour under zero stress. By applying an increasing stress to the microwires, the inner core with longitudinal anisotropy is surrounded by two concentric outer shells with almost circumferential anisotropies. These magnetic configurations can be explained in terms of the residual stress arising from the wire's manufacturing procedure and the additional applied stress.

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Enhanced high-frequency magneto-impedance response of melt-extracted Co69.25Fe4.25Si13B13.5 microwires subject to Joule annealing

Thiabgoh

Shen

Eggers

et al. 2016

Journal of Science: Advanced Materials and Devices

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Domain structure in Joule-heated CoFeSiB glass-covered amorphous microwires probed by magnetoimpedance and ferromagnetic resonance

Abstract: Influence of Joule heating on magnetostriction and giant magnetoimpedance effect in a glass covered CoFeSiB microwire J. Appl. Phys. 85, 5435 (1999); 10.1063/1.369967Modeling of domain structure and anisotropy in glass-covered amorphous wires

Cited by 6 publications

References 16 publications

Influence of microstructure evolution on GMI properties and magnetic domains of melt-extracted Zr-doped amorphous wires with accumulated DC annealing

Influence of microstructure evolution on GMI properties and magnetic domains of melt-extracted Zr-doped amorphous wires with accumulated DC annealing

Comparison between ac and dc current annealing in CoFeSiB glass-covered amorphous microwires

Enhanced high-frequency magneto-impedance response of melt-extracted Co69.25Fe4.25Si13B13.5 microwires subject to Joule annealing

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