Performance of crossed anisotropy multilayered CoZrNb films as IC chip level electromagnetic noise suppressor

Yutaka Shimada; Jingyan Ma; Tetsuo Ito; Kunio Yanagi; Yasushi Endo; Sho Muroga; Masahiro Yamaguchi

doi:10.1109/TMAG.2014.2331854

Performance of crossed anisotropy multilayered CoZrNb films as IC chip level electromagnetic noise suppressor

Yutaka Shimada, Jingyan Ma, Tetsuo Ito, Kunio Yanagi, Yasushi Endo, Sho Muroga, Masahiro Yamaguchi

工学研究科・電気エネルギーシステム専攻

研究成果: Article › 査読

13 被引用数 (Scopus)

抄録

Co-Zr-Nb multilayers with crossed anisotropy along with multilayers with uniaxial anisotropy were investigated from the standpoint of electromagnetic noise suppressors. Frequency dependences of conduction losses and magnetic near field intensity of a microstrip line (MSL) covered with these multilayers were measured simultaneously. It was found that ferromagnetic resonance excited by RF field from MSL takes a major role of noise suppression over a wide frequency. The ferromagnetic resonance frequency is determined by intrinsic anisotropy field. In addition, shape anisotropy field caused by presence of MSL is negligibly small. The in-plane isotropy feature of noise suppressing performance for the crossed anisotropy films was verified experimentally and numerically.

本文言語	English
論文番号	6971310
ジャーナル	IEEE Transactions on Magnetics
巻	50
号	11
DOI	https://doi.org/10.1109/TMAG.2014.2331854
出版ステータス	Published - 2014 11 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

文献へのアクセス

10.1109/TMAG.2014.2331854

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引用スタイル

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abstract = "Co-Zr-Nb multilayers with crossed anisotropy along with multilayers with uniaxial anisotropy were investigated from the standpoint of electromagnetic noise suppressors. Frequency dependences of conduction losses and magnetic near field intensity of a microstrip line (MSL) covered with these multilayers were measured simultaneously. It was found that ferromagnetic resonance excited by RF field from MSL takes a major role of noise suppression over a wide frequency. The ferromagnetic resonance frequency is determined by intrinsic anisotropy field. In addition, shape anisotropy field caused by presence of MSL is negligibly small. The in-plane isotropy feature of noise suppressing performance for the crossed anisotropy films was verified experimentally and numerically.",

keywords = "Co-Zr-Nb, Conductive loss, electromagnetic noise suppressor, ferromagnetic resonance (FMR), integrated circuit (IC) chip, microstrip line (MSL), near field, permeability thin film",

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AU - Shimada, Yutaka

AU - Ma, Jingyan

AU - Ito, Tetsuo

AU - Yanagi, Kunio

AU - Endo, Yasushi

AU - Muroga, Sho

AU - Yamaguchi, Masahiro

PY - 2014/11/1

Y1 - 2014/11/1

N2 - Co-Zr-Nb multilayers with crossed anisotropy along with multilayers with uniaxial anisotropy were investigated from the standpoint of electromagnetic noise suppressors. Frequency dependences of conduction losses and magnetic near field intensity of a microstrip line (MSL) covered with these multilayers were measured simultaneously. It was found that ferromagnetic resonance excited by RF field from MSL takes a major role of noise suppression over a wide frequency. The ferromagnetic resonance frequency is determined by intrinsic anisotropy field. In addition, shape anisotropy field caused by presence of MSL is negligibly small. The in-plane isotropy feature of noise suppressing performance for the crossed anisotropy films was verified experimentally and numerically.

AB - Co-Zr-Nb multilayers with crossed anisotropy along with multilayers with uniaxial anisotropy were investigated from the standpoint of electromagnetic noise suppressors. Frequency dependences of conduction losses and magnetic near field intensity of a microstrip line (MSL) covered with these multilayers were measured simultaneously. It was found that ferromagnetic resonance excited by RF field from MSL takes a major role of noise suppression over a wide frequency. The ferromagnetic resonance frequency is determined by intrinsic anisotropy field. In addition, shape anisotropy field caused by presence of MSL is negligibly small. The in-plane isotropy feature of noise suppressing performance for the crossed anisotropy films was verified experimentally and numerically.

KW - Co-Zr-Nb

KW - Conductive loss

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KW - ferromagnetic resonance (FMR)

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KW - near field

KW - permeability thin film

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