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

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6 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 languageEnglish
Pages (from-to)1946-1950
Number of pages5
JournalPhysica Status Solidi (A) Applied Research
Volume201
Issue number8
DOIs
Publication statusPublished - 2004 Jun 1

Fingerprint

permeability
Magnetic thin films
Ferromagnetic resonance
Saturation magnetization
Eddy currents
Film thickness
Anisotropy
Damping
Thin films
ferromagnetic resonance
thin films
eddy currents
film thickness
damping
saturation
magnetization
anisotropy
electrical resistivity

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

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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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T1 - Theoretical and experimental permeability spectra of nano-granular Co-Fe-Al-O films for GHz magnetoelastic device applications

AU - Sohn, J. C.

AU - Byun, Dong Jin

AU - Lim, Sang Ho

PY - 2004/6/1

Y1 - 2004/6/1

N2 - 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.

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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JF - Physica Status Solidi (A) Applied Research

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