Theoretical and experimental permeability spectra of nano-granular Co-Fe-Al-O films for GHz magnetoelastic device applications

J. C. Sohn; D. J. Byun; S. H. Lim

doi:10.1002/pssa.200304686

Theoretical and experimental permeability spectra of nano-granular Co-Fe-Al-O films for GHz magnetoelastic device applications

J. C. Sohn, D. J. Byun, S. H. Lim

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The effects of the various parameters such as saturation magnetization, anisotropy field, film thickness and resistivity of soft magnetic thin films on the permeability spectra are investigated by using the Landau-Lifshitz-Gilbert equation. Both effects of eddy current loss and ferromagnetic resonance loss on the intrinsic permeability are taken into account to obtain the expression for the effective relative permeability. The calculated permeability spectra are in good agreement with experimental results for nano granular Co-Fe-Al-O thin films, even though only one fitting parameter, the damping constant, is used.

Original language	English
Pages (from-to)	1946-1950
Number of pages	5
Journal	Physica Status Solidi (A) Applied Research
Volume	201
Issue number	8
DOIs	https://doi.org/10.1002/pssa.200304686
Publication status	Published - 2004 Jun

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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abstract = "The effects of the various parameters such as saturation magnetization, anisotropy field, film thickness and resistivity of soft magnetic thin films on the permeability spectra are investigated by using the Landau-Lifshitz-Gilbert equation. Both effects of eddy current loss and ferromagnetic resonance loss on the intrinsic permeability are taken into account to obtain the expression for the effective relative permeability. The calculated permeability spectra are in good agreement with experimental results for nano granular Co-Fe-Al-O thin films, even though only one fitting parameter, the damping constant, is used.",

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AU - Lim, S. H.

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AB - The effects of the various parameters such as saturation magnetization, anisotropy field, film thickness and resistivity of soft magnetic thin films on the permeability spectra are investigated by using the Landau-Lifshitz-Gilbert equation. Both effects of eddy current loss and ferromagnetic resonance loss on the intrinsic permeability are taken into account to obtain the expression for the effective relative permeability. The calculated permeability spectra are in good agreement with experimental results for nano granular Co-Fe-Al-O thin films, even though only one fitting parameter, the damping constant, is used.

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DO - 10.1002/pssa.200304686

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ER -

Theoretical and experimental permeability spectra of nano-granular Co-Fe-Al-O films for GHz magnetoelastic device applications

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