Study of GMI-valve characteristics in the Co-based amorphous ribbon by ferromagnetic resonance

D. G. Park; C. G. Kim; W. W. Kim; J. H. Hong

doi:10.1016/j.jmmm.2006.10.1134

Study of GMI-valve characteristics in the Co-based amorphous ribbon by ferromagnetic resonance

D. G. Park, C. G. Kim, W. W. Kim, J. H. Hong

Department of Physics and Chemistry

Korea Atomic Energy Research Institute

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

2 Scopus citations

Abstract

The mechanism of the drastic increase of the giant magneto impedance (GMI) sensitivity which is enhanced to over 1000%/Oe, which shows the GMI-valve characteristic, has been studied using ferromagnetic resonance (FMR). The FMR linewidth of the annealed sample increased with the increasing annealing time in parallel and perpendicular to it. From the FMR results, it can be concluded that the GMI-valve characteristic is attributed to the surface anisotropy due to the exchanging coupling arising from the interaction between the ferromagnetic amorphous core and the antiferromagnetic oxidation layer.

Original language	English
Pages (from-to)	2295-2297
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	310
Issue number	2 SUPPL. PART 3
DOIs	https://doi.org/10.1016/j.jmmm.2006.10.1134
State	Published - Mar 2007

Keywords

Amorphous ribbon
Exchange coupling
Ferromagnetic resonance (FMR)
GMI-valve
Surface oxidation

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10.1016/j.jmmm.2006.10.1134

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title = "Study of GMI-valve characteristics in the Co-based amorphous ribbon by ferromagnetic resonance",

abstract = "The mechanism of the drastic increase of the giant magneto impedance (GMI) sensitivity which is enhanced to over 1000%/Oe, which shows the GMI-valve characteristic, has been studied using ferromagnetic resonance (FMR). The FMR linewidth of the annealed sample increased with the increasing annealing time in parallel and perpendicular to it. From the FMR results, it can be concluded that the GMI-valve characteristic is attributed to the surface anisotropy due to the exchanging coupling arising from the interaction between the ferromagnetic amorphous core and the antiferromagnetic oxidation layer.",

keywords = "Amorphous ribbon, Exchange coupling, Ferromagnetic resonance (FMR), GMI-valve, Surface oxidation",

author = "Park, {D. G.} and Kim, {C. G.} and Kim, {W. W.} and Hong, {J. H.}",

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AU - Park, D. G.

AU - Kim, C. G.

AU - Kim, W. W.

AU - Hong, J. H.

PY - 2007/3

Y1 - 2007/3

N2 - The mechanism of the drastic increase of the giant magneto impedance (GMI) sensitivity which is enhanced to over 1000%/Oe, which shows the GMI-valve characteristic, has been studied using ferromagnetic resonance (FMR). The FMR linewidth of the annealed sample increased with the increasing annealing time in parallel and perpendicular to it. From the FMR results, it can be concluded that the GMI-valve characteristic is attributed to the surface anisotropy due to the exchanging coupling arising from the interaction between the ferromagnetic amorphous core and the antiferromagnetic oxidation layer.

AB - The mechanism of the drastic increase of the giant magneto impedance (GMI) sensitivity which is enhanced to over 1000%/Oe, which shows the GMI-valve characteristic, has been studied using ferromagnetic resonance (FMR). The FMR linewidth of the annealed sample increased with the increasing annealing time in parallel and perpendicular to it. From the FMR results, it can be concluded that the GMI-valve characteristic is attributed to the surface anisotropy due to the exchanging coupling arising from the interaction between the ferromagnetic amorphous core and the antiferromagnetic oxidation layer.

KW - Amorphous ribbon

KW - Exchange coupling

KW - Ferromagnetic resonance (FMR)

KW - GMI-valve

KW - Surface oxidation

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DO - 10.1016/j.jmmm.2006.10.1134

M3 - Article

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SN - 0304-8853

VL - 310

SP - 2295

EP - 2297

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 2 SUPPL. PART 3

ER -

Study of GMI-valve characteristics in the Co-based amorphous ribbon by ferromagnetic resonance

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Keywords

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