Production of magnetically soft submicron particles from aqueous solutions and characterization

Y. Shimada; Y. Endo; M. Yamaguchi; S. Okamoto; O. Kitakami; Y. Imano; H. Matsumoto; S. Yoshida

doi:10.1109/TMAG.2009.2024951

Production of magnetically soft submicron particles from aqueous solutions and characterization

Y. Shimada, Y. Endo, M. Yamaguchi, S. Okamoto, O. Kitakami, Y. Imano, H. Matsumoto, S. Yoshida

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

15 Citations (Scopus)

Abstract

Submicron-size amorphous particles were produced chemically from aqueous solutions. The particles in the as-made state exhibit a high saturation magnetization and magnetic softness almost equivalent to that of much larger amorphous particles produced by water atmizing. Platinum ions work effectively to control the particle size without losing magnetic softness. Magnetic softness observed for the as-made particles becomes degraded slightly by annealing. A calculation of eddy current within spheres predicts no eddy current loss even at 100 MHz for 0.3-μm particles, whereas initial permeability measurements exhibit slight indication of magnetic loss due to the broad spin resonance profile extending from 100 MHz to 10 GHz.

Original language	English
Article number	5257348
Pages (from-to)	4298-4301
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	45
Issue number	10
DOIs	https://doi.org/10.1109/TMAG.2009.2024951
Publication status	Published - 2009 Oct

Keywords

Amorphous
Magnetic softness
Particlee
Prmeability
Submicron

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10.1109/TMAG.2009.2024951

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title = "Production of magnetically soft submicron particles from aqueous solutions and characterization",

abstract = "Submicron-size amorphous particles were produced chemically from aqueous solutions. The particles in the as-made state exhibit a high saturation magnetization and magnetic softness almost equivalent to that of much larger amorphous particles produced by water atmizing. Platinum ions work effectively to control the particle size without losing magnetic softness. Magnetic softness observed for the as-made particles becomes degraded slightly by annealing. A calculation of eddy current within spheres predicts no eddy current loss even at 100 MHz for 0.3-μm particles, whereas initial permeability measurements exhibit slight indication of magnetic loss due to the broad spin resonance profile extending from 100 MHz to 10 GHz.",

keywords = "Amorphous, Magnetic softness, Particlee, Prmeability, Submicron",

author = "Y. Shimada and Y. Endo and M. Yamaguchi and S. Okamoto and O. Kitakami and Y. Imano and H. Matsumoto and S. Yoshida",

note = "Funding Information: This work was supported in part by the Strategic Information and Communications R&D Promotion Programme (SCOPE) by the Ministry of Internal Affairs, Japan. The authors would like to thank Epson Atmix Company for supplying Fe–Si–B–Cr samples.",

year = "2009",

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volume = "45",

pages = "4298--4301",

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T1 - Production of magnetically soft submicron particles from aqueous solutions and characterization

AU - Shimada, Y.

AU - Endo, Y.

AU - Yamaguchi, M.

AU - Okamoto, S.

AU - Kitakami, O.

AU - Imano, Y.

AU - Matsumoto, H.

AU - Yoshida, S.

N1 - Funding Information: This work was supported in part by the Strategic Information and Communications R&D Promotion Programme (SCOPE) by the Ministry of Internal Affairs, Japan. The authors would like to thank Epson Atmix Company for supplying Fe–Si–B–Cr samples.

PY - 2009/10

Y1 - 2009/10

N2 - Submicron-size amorphous particles were produced chemically from aqueous solutions. The particles in the as-made state exhibit a high saturation magnetization and magnetic softness almost equivalent to that of much larger amorphous particles produced by water atmizing. Platinum ions work effectively to control the particle size without losing magnetic softness. Magnetic softness observed for the as-made particles becomes degraded slightly by annealing. A calculation of eddy current within spheres predicts no eddy current loss even at 100 MHz for 0.3-μm particles, whereas initial permeability measurements exhibit slight indication of magnetic loss due to the broad spin resonance profile extending from 100 MHz to 10 GHz.

AB - Submicron-size amorphous particles were produced chemically from aqueous solutions. The particles in the as-made state exhibit a high saturation magnetization and magnetic softness almost equivalent to that of much larger amorphous particles produced by water atmizing. Platinum ions work effectively to control the particle size without losing magnetic softness. Magnetic softness observed for the as-made particles becomes degraded slightly by annealing. A calculation of eddy current within spheres predicts no eddy current loss even at 100 MHz for 0.3-μm particles, whereas initial permeability measurements exhibit slight indication of magnetic loss due to the broad spin resonance profile extending from 100 MHz to 10 GHz.

KW - Amorphous

KW - Magnetic softness

KW - Particlee

KW - Prmeability

KW - Submicron

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Production of magnetically soft submicron particles from aqueous solutions and characterization

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Keywords

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