Ferromagnetic resonance behaviors of integrated CoPdAIO magnetic film on coplanar waveguide

Ki Hyeon Kim; Masahiro Yamaguchi; Jongryoul Kim

doi:10.3938/jkps.51.2026

Ferromagnetic resonance behaviors of integrated CoPdAIO magnetic film on coplanar waveguide

Ki Hyeon Kim, Masahiro Yamaguchi, Jongryoul Kim

ENG - Electrical Engineering

Research output: Contribution to journal › Article

7 Citations (Scopus)

Abstract

CoPdAlO magnetic films, whose ferromagnetic resonance (FMR) frequency was 4.2 GHz, were deposited on a coplanar waveguide (CPW) by using a RF magnetron sputtering method and were then patterned with a size of 2000 μm × 50 μm × 2 μm (l × w × t). In the case of the patterned magnetic films on CPW, the calculated and the measured FMR frequencies were shifted to around 7 GHz, and the measured characteristic impedance of the CPW was also changed by around 7 GHz. In addition, the propagation wavelength shortening effect was enhanced by about 17 % up to 7 GHz compared with that of the CPW without magnetic film. These results show that patterned magnetic films can be used as band-pass filters and broad-band EMI noise filters in the RF and the microwave regions.

Original language	English
Pages (from-to)	2026-2030
Number of pages	5
Journal	Journal of the Korean Physical Society
Volume	51
Issue number	6
DOIs	https://doi.org/10.3938/jkps.51.2026
Publication status	Published - 2007 Jan 1

Keywords

Ferromagnetic resonance
Magnetic film devices
Noise suppression
Permeability

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.3938/jkps.51.2026

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Kim, K. H., Yamaguchi, M., & Kim, J. (2007). Ferromagnetic resonance behaviors of integrated CoPdAIO magnetic film on coplanar waveguide. Journal of the Korean Physical Society, 51(6), 2026-2030. https://doi.org/10.3938/jkps.51.2026

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title = "Ferromagnetic resonance behaviors of integrated CoPdAIO magnetic film on coplanar waveguide",

abstract = "CoPdAlO magnetic films, whose ferromagnetic resonance (FMR) frequency was 4.2 GHz, were deposited on a coplanar waveguide (CPW) by using a RF magnetron sputtering method and were then patterned with a size of 2000 μm × 50 μm × 2 μm (l × w × t). In the case of the patterned magnetic films on CPW, the calculated and the measured FMR frequencies were shifted to around 7 GHz, and the measured characteristic impedance of the CPW was also changed by around 7 GHz. In addition, the propagation wavelength shortening effect was enhanced by about 17 % up to 7 GHz compared with that of the CPW without magnetic film. These results show that patterned magnetic films can be used as band-pass filters and broad-band EMI noise filters in the RF and the microwave regions.",

keywords = "Ferromagnetic resonance, Magnetic film devices, Noise suppression, Permeability",

author = "Kim, {Ki Hyeon} and Masahiro Yamaguchi and Jongryoul Kim",

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AU - Yamaguchi, Masahiro

AU - Kim, Jongryoul

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N2 - CoPdAlO magnetic films, whose ferromagnetic resonance (FMR) frequency was 4.2 GHz, were deposited on a coplanar waveguide (CPW) by using a RF magnetron sputtering method and were then patterned with a size of 2000 μm × 50 μm × 2 μm (l × w × t). In the case of the patterned magnetic films on CPW, the calculated and the measured FMR frequencies were shifted to around 7 GHz, and the measured characteristic impedance of the CPW was also changed by around 7 GHz. In addition, the propagation wavelength shortening effect was enhanced by about 17 % up to 7 GHz compared with that of the CPW without magnetic film. These results show that patterned magnetic films can be used as band-pass filters and broad-band EMI noise filters in the RF and the microwave regions.

AB - CoPdAlO magnetic films, whose ferromagnetic resonance (FMR) frequency was 4.2 GHz, were deposited on a coplanar waveguide (CPW) by using a RF magnetron sputtering method and were then patterned with a size of 2000 μm × 50 μm × 2 μm (l × w × t). In the case of the patterned magnetic films on CPW, the calculated and the measured FMR frequencies were shifted to around 7 GHz, and the measured characteristic impedance of the CPW was also changed by around 7 GHz. In addition, the propagation wavelength shortening effect was enhanced by about 17 % up to 7 GHz compared with that of the CPW without magnetic film. These results show that patterned magnetic films can be used as band-pass filters and broad-band EMI noise filters in the RF and the microwave regions.

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KW - Noise suppression

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