Study on structure and magnetic properties of sub-micron Fe-B particles

Yasushi Endo; Bingchuan Fang; Takamichi Miyazaki; Hanae Aoki; Hiroshi Masumoto

doi:10.1541/ieejfms.141.306

Study on structure and magnetic properties of sub-micron Fe-B particles

Yasushi Endo, Bingchuan Fang, Takamichi Miyazaki, Hanae Aoki, Hiroshi Masumoto

Tohoku University

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

Abstract

This paper describes the study on structure and magnetic properties of Fe-B particles with submicron sizes synthesized by chemical preparation in aqueous solutions. The shape and structure of the particles are spherical and amorphous regardless of median size. Both the remanence magnetic ratio and coercivity of the particles are independent of median size and become lower, suggesting the good magnetic softness with the low hysteresis loss. Furthermore, as for the dynamic magnetic properties of the particles, each ferromagnetic resonance (FMR) peak can be observed in the frequency range of approximately 3-5 GHz and their line-widths are broad. These results demonstrate that these amorphous Fe-B spherical particles with submicron sizes are one of the candidates as soft magnetic materials for next generation high-frequency magnetic devices.

Original language	English
Pages (from-to)	306-310
Number of pages	5
Journal	IEEJ Transactions on Fundamentals and Materials
Volume	141
Issue number	5
DOIs	https://doi.org/10.1541/ieejfms.141.306
Publication status	Published - 2021

Keywords

FMR frequency
High-frequency magnetic properties
Softness
Submicron sized Fe-B particles

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title = "Study on structure and magnetic properties of sub-micron Fe-B particles",

abstract = "This paper describes the study on structure and magnetic properties of Fe-B particles with submicron sizes synthesized by chemical preparation in aqueous solutions. The shape and structure of the particles are spherical and amorphous regardless of median size. Both the remanence magnetic ratio and coercivity of the particles are independent of median size and become lower, suggesting the good magnetic softness with the low hysteresis loss. Furthermore, as for the dynamic magnetic properties of the particles, each ferromagnetic resonance (FMR) peak can be observed in the frequency range of approximately 3-5 GHz and their line-widths are broad. These results demonstrate that these amorphous Fe-B spherical particles with submicron sizes are one of the candidates as soft magnetic materials for next generation high-frequency magnetic devices.",

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T1 - Study on structure and magnetic properties of sub-micron Fe-B particles

AU - Endo, Yasushi

AU - Fang, Bingchuan

AU - Miyazaki, Takamichi

AU - Aoki, Hanae

AU - Masumoto, Hiroshi

PY - 2021

Y1 - 2021

N2 - This paper describes the study on structure and magnetic properties of Fe-B particles with submicron sizes synthesized by chemical preparation in aqueous solutions. The shape and structure of the particles are spherical and amorphous regardless of median size. Both the remanence magnetic ratio and coercivity of the particles are independent of median size and become lower, suggesting the good magnetic softness with the low hysteresis loss. Furthermore, as for the dynamic magnetic properties of the particles, each ferromagnetic resonance (FMR) peak can be observed in the frequency range of approximately 3-5 GHz and their line-widths are broad. These results demonstrate that these amorphous Fe-B spherical particles with submicron sizes are one of the candidates as soft magnetic materials for next generation high-frequency magnetic devices.

AB - This paper describes the study on structure and magnetic properties of Fe-B particles with submicron sizes synthesized by chemical preparation in aqueous solutions. The shape and structure of the particles are spherical and amorphous regardless of median size. Both the remanence magnetic ratio and coercivity of the particles are independent of median size and become lower, suggesting the good magnetic softness with the low hysteresis loss. Furthermore, as for the dynamic magnetic properties of the particles, each ferromagnetic resonance (FMR) peak can be observed in the frequency range of approximately 3-5 GHz and their line-widths are broad. These results demonstrate that these amorphous Fe-B spherical particles with submicron sizes are one of the candidates as soft magnetic materials for next generation high-frequency magnetic devices.

KW - FMR frequency

KW - High-frequency magnetic properties

KW - Softness

KW - Submicron sized Fe-B particles

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Study on structure and magnetic properties of sub-micron Fe-B particles

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