Investigation of high frequency permeability of thin amorphous wires

Acher, O.; Jacquart, Pierre-Marie; Boscher, C.

doi:10.1109/20.334142

Cited by 38 publications

(14 citation statements)

References 7 publications

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“…During the past few years, there has been increasing interest in amorphous magnetic microwires as they exhibit giant magnetoimpedance 1,2 at low field and can also display unusual domain structures 3 because of the large strains frozen in during the manufacturing process. Since some of these properties make them useful for microwave devices, a careful study is essential to establish appropriate design criteria.…”

Section: Introductionmentioning

confidence: 99%

Microwave magnetoabsorption in glass-coated amorphous microwires with radii close to skin depth

Lofland

Garcı́a-Miquel

Vázquez

et al. 2002

Journal of Applied Physics

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Lofland, S.; García Miquel, ÁH.; Vázquez, M.; Bhagat, S. (2002). Microwave magnetoabsorption in glass-coated amorphous microwires with radii close to skin depth. Journal of Applied Physics. 92(4): 2058-2063. doi:10.1063/1.1494847 Microwave magnetoabsorption in glass-coated amorphous microwires with radii close to skin depth ͑͒We present the frequency dependence of microwave magnetoabsorption in glass-coated amorphous microwires of (Co 100Ϫx Fe x ) 72.5 Si 12.5 B 15 . The data were taken at room temperature in the frequency range of 1-60 GHz for field up to 15 kOe by either a cavity perturbation technique or a coaxial transmission line. The resulting spectra strongly depend upon the local microwave magnetic and electric fields We have found that we can simulate the spectra using an analytic solution to the problem of electromagnetic scattering from a cylinder. We demonstrate that these unusual spectra can be interpreted in terms of ferromagnetic resonance and antiferromagnetic resonance. However, because the electromagnetic skin depth is comparable to the radius, the resonance and antiresonance field do not follow the conventional equations.

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Section: Introductionmentioning

confidence: 99%

Microwave magnetoabsorption in glass-coated amorphous microwires with radii close to skin depth

Lofland

Garcı́a-Miquel

Vázquez

et al. 2002

Journal of Applied Physics

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show abstract

“…In work [11] natural ferromagnetic resonance in the case of microwires with zero magnetostriction in diapason 1-2 GHz was observed, which can be taken as an indication that the better the estimation given in Eq. (15) the larger the a 2 .…”

Section: Resonance Frequencymentioning

confidence: 92%

On micromagnetic theory of thin cast amorphous microwires

Baranov

Laroze

Vargas

et al. 2006

Physica B: Condensed Matter

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“…2) can be demonstrated through parallel permeability measurements [29][30][31]. In this case, the dynamic magnetic field is able to excite the magnetisation precession following the gyromagnetism model from Landau-Lifchitz-Gilbert.…”

Section: Parallel Permeabilitymentioning

confidence: 98%

“…The circumferential magnetisation implies that the static demagnetising coefficients are similar to those of a thin film with a large stripe domain structure. The gyromagnetic permeability can thus be simplified to give the following expression of parallel permeability [29]:…”

Section: Parallel Permeabilitymentioning

confidence: 99%