High-frequency magnetic properties of FeNi3-SiO2 nanocomposite synthesized by a facile chemical method

Xuegang Lu; Gongying Liang; Qianjin Sun; Caihua Yang

doi:10.1016/j.jallcom.2011.01.101

High-frequency magnetic properties of FeNi₃-SiO₂ nanocomposite synthesized by a facile chemical method

Xuegang Lu
, Gongying Liang
, Qianjin Sun
, Caihua Yang

School of Physics

Xi'an Jiaotong University

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

39 Scopus citations

Abstract

Monodisperse core-shell structured FeNi₃-SiO₂ composite nanoparticles (NPs) were synthesized by a facile hydrazine reduction combined modified Stöber method. SEM and TEM analysis shows that FeNi ₃ cores are composed of small primary nanocrystals and are coated by amorphous SiO₂ layer. As-prepared FeNi₃-SiO₂ nanocomposites exhibit typical soft magnetic properties. The permeability spectra vary with the contents of SiO₂. When the SiO₂ content is 10 wt%, the real part μ′ of the permeability reaches about 10 and is almost independent of frequency in the frequency range up to 1 GHz. And the imaginary part μ″ remains very low. This paper presents a facile approach to fabrication of novel soft magnetic materials for high-frequency applications.

Original language	English
Pages (from-to)	5079-5083
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	509
Issue number	16
DOIs	https://doi.org/10.1016/j.jallcom.2011.01.101
State	Published - 21 Apr 2011

Keywords

Chemical synthesis
FeNi-SiO
Magnetic measurements
Magnetic properties
Nanostructured materials

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10.1016/j.jallcom.2011.01.101

Cite this

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title = "High-frequency magnetic properties of FeNi3-SiO2 nanocomposite synthesized by a facile chemical method",

abstract = "Monodisperse core-shell structured FeNi3-SiO2 composite nanoparticles (NPs) were synthesized by a facile hydrazine reduction combined modified St{\"o}ber method. SEM and TEM analysis shows that FeNi 3 cores are composed of small primary nanocrystals and are coated by amorphous SiO2 layer. As-prepared FeNi3-SiO2 nanocomposites exhibit typical soft magnetic properties. The permeability spectra vary with the contents of SiO2. When the SiO2 content is 10 wt\%, the real part μ′ of the permeability reaches about 10 and is almost independent of frequency in the frequency range up to 1 GHz. And the imaginary part μ″ remains very low. This paper presents a facile approach to fabrication of novel soft magnetic materials for high-frequency applications.",

keywords = "Chemical synthesis, FeNi-SiO, Magnetic measurements, Magnetic properties, Nanostructured materials",

author = "Xuegang Lu and Gongying Liang and Qianjin Sun and Caihua Yang",

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TY - JOUR

T1 - High-frequency magnetic properties of FeNi3-SiO2 nanocomposite synthesized by a facile chemical method

AU - Lu, Xuegang

AU - Liang, Gongying

AU - Sun, Qianjin

AU - Yang, Caihua

PY - 2011/4/21

Y1 - 2011/4/21

N2 - Monodisperse core-shell structured FeNi3-SiO2 composite nanoparticles (NPs) were synthesized by a facile hydrazine reduction combined modified Stöber method. SEM and TEM analysis shows that FeNi 3 cores are composed of small primary nanocrystals and are coated by amorphous SiO2 layer. As-prepared FeNi3-SiO2 nanocomposites exhibit typical soft magnetic properties. The permeability spectra vary with the contents of SiO2. When the SiO2 content is 10 wt%, the real part μ′ of the permeability reaches about 10 and is almost independent of frequency in the frequency range up to 1 GHz. And the imaginary part μ″ remains very low. This paper presents a facile approach to fabrication of novel soft magnetic materials for high-frequency applications.

AB - Monodisperse core-shell structured FeNi3-SiO2 composite nanoparticles (NPs) were synthesized by a facile hydrazine reduction combined modified Stöber method. SEM and TEM analysis shows that FeNi 3 cores are composed of small primary nanocrystals and are coated by amorphous SiO2 layer. As-prepared FeNi3-SiO2 nanocomposites exhibit typical soft magnetic properties. The permeability spectra vary with the contents of SiO2. When the SiO2 content is 10 wt%, the real part μ′ of the permeability reaches about 10 and is almost independent of frequency in the frequency range up to 1 GHz. And the imaginary part μ″ remains very low. This paper presents a facile approach to fabrication of novel soft magnetic materials for high-frequency applications.

KW - Chemical synthesis

KW - FeNi-SiO

KW - Magnetic measurements

KW - Magnetic properties

KW - Nanostructured materials

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DO - 10.1016/j.jallcom.2011.01.101

M3 - 文章

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SN - 0925-8388

VL - 509

SP - 5079

EP - 5083

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 16

ER -

High-frequency magnetic properties of FeNi₃-SiO₂ nanocomposite synthesized by a facile chemical method

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