Dipolar-biased giant magnetoimpedance

Sinnecker, J.P.; Araújo, Aruzza Mabel de Morais; Piccin, R.; Knobel, M.; Vázquez, M.

doi:10.1016/j.jmmm.2005.01.002

Cited by 29 publications

(28 citation statements)

References 9 publications

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“…In this sense, to improve the linear features of the MI response, studies have been carried out considering differ- * Electronic address: felipebohn@gmail.com ent magnetic systems, including wires [6,8], amorphous ribbons [7,9], and exchange biased multilayers [5,10]. All of them exhibit asymmetric magnetoimpedance (AMI), characterized by a linear response around zero magnetic field, opening possibilities for the use of this kind of materials for the development of auto-biased linear magnetic field sensors.…”

Section: Introductionmentioning

confidence: 99%

Asymmetric magnetoimpedance effect in ferromagnetic multilayered biphase films

Silva

Gamino

et al. 2015

Journal of Magnetism and Magnetic Materials

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effect in ferromagnetic multilayered biphase films, Journal of Magnetism and Magnetic Materials, http://dx.We investigate the magnetoimpedance effect in ferromagnetic multilayered biphase films. We verify that the films present asymmetric magnetoimpedance behavior and, by playing with the number of the repetitions of the base structure of the multilayer and the probe current frequency, we explore the possibility of tailoring the linear region around zero magnetic field in order to achieve higher sensitivity values. The highest sensitivity is observed for the thicker film, reaching ∼ 15 mΩ/Oe at ∼ 0.52 GHz. Thus, the results open the possibilities for application of ferromagnetic multilayered biphase films with asymmetric magnetoimpedance effect in sensors devices.

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Section: Introductionmentioning

confidence: 99%

Asymmetric magnetoimpedance effect in ferromagnetic multilayered biphase films

Silva

Gamino

et al. 2015

Journal of Magnetism and Magnetic Materials

Self Cite

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“…Moreover, these multilayers present remarkable asymmetric magnetoimpedance effect, depicted by the difference of amplitude of the peaks. Generally, asymmetric MI results are understood in terms of induced asymmetric static magnetic configuration, usually done by magnetostatic interactions [32][33][34][35][36][37] or exchange bias [14,22,38,39], or by playing with the orientation between the external magnetic field and anisotropy [40]. The Co/Ta multilayers have high anisotropy dispersion.…”

Section: Magnetoimpedance Effectmentioning

confidence: 99%

Mirroring the dynamic magnetic behavior of magnetostrictive Co/(Ag,Cu,Ta) multilayers grown onto rigid and flexible substrates

Agra

Gomes

Pace

et al. 2015

Journal of Magnetism and Magnetic Materials

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“…The handicap of this latter procedure is that a higher consumption is needed [22,23,46]. The same asymmetry found in off-diagonal components, has been also found in axial impedance by the effect of dipolar interactions between two different samples [47].…”

Section: Microstructure Influence On Soft Magnetic Properties: Nanocrmentioning

confidence: 81%

Magnetoimpedance in soft magnetic amorphous and nanostructured wires

et al. 2011

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The surface impedance tensor approach has been used to review the impedance response in a variety of amorphous and nanocrystallized wires. An experimental study on the torsion annealing effect on the magnetoimpedance (MI) behaviour for positive and negative magnetostriction amorphous wires of FeSiB and CoSiB compositions, respectively, has been carried out. Moreover, the influence of the onset nanocrystallization on the MI behaviour in Finemet-type alloys, with particular attention focussed on the case that the wires are annealed under applied torsional stress, is also presented. The analysis of the MI and torsion-impedance (TI) effects allows us to compare the different magnetic characteristics observed in a variety of wires. Special attention is paid to new results of the off-diagonal MI huge responses of these ferromagnetic samples, which are also a very useful source of information on the magnetic properties of the wires.

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Dipolar-biased giant magnetoimpedance

Cited by 29 publications

References 9 publications

Asymmetric magnetoimpedance effect in ferromagnetic multilayered biphase films

Asymmetric magnetoimpedance effect in ferromagnetic multilayered biphase films

Mirroring the dynamic magnetic behavior of magnetostrictive Co/(Ag,Cu,Ta) multilayers grown onto rigid and flexible substrates

Magnetoimpedance in soft magnetic amorphous and nanostructured wires

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