Asymmetric magnetoimpedance effect and dipolar interactions of FINEMET/SiO2/FePd composite ribbons

Yong Bin Guo; Dao Wang; Zhong Min Wang; Lei Ma; Zhen Jie Zhao

doi:10.1088/1674-1056/acad6e

Asymmetric magnetoimpedance effect and dipolar interactions of FINEMET/SiO₂/FePd composite ribbons

Yong Bin Guo
, Dao Wang
, Zhong Min Wang^*
, Lei Ma^*
, Zhen Jie Zhao^*

^*Corresponding author for this work

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

2 Scopus citations

Abstract

The dipolar interactions are investigated through the asymmetric magneto-impedance in FINEMET/SiO₂/FePd composite ribbons. The interface between the hard (FePd layer) phase and soft (FINEMET ribbon) phase is coherent by SiO₂ layer in FINEMET/SiO₂/FePd composite ribbons, which effectively induces dipolar interactions. The contribution of dipolar interaction to the bias field (H _b) by asymmetrical giant magneto-impedance and magnetic properties is analyzed. The results show that H _b response decreases with the increase of the SiO₂ layer thickness, indicating that the linear region near-zero field can be tuned by the thickness of SiO₂ layer. These results allow the GMI ratio (58%) and characteristic frequency (500 kHz) to be optimized. The transverse and longitudinal magnetic domain structures of FINEMET ribbon and FePd film are confirmed, respectively. The composite ribbons with high GMI ratio and low frequency can be applied to linear magnetic sensors.

Original language	English
Article number	070703
Journal	Chinese Physics B
Volume	32
Issue number	7
DOIs	https://doi.org/10.1088/1674-1056/acad6e
State	Published - 1 Jun 2023
Externally published	Yes

Keywords

FePd film
asymmetric giant magnetoimpedance
composite ribbons

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10.1088/1674-1056/acad6e

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@article{c0d48238dc824190844bd39d94022299,

title = "Asymmetric magnetoimpedance effect and dipolar interactions of FINEMET/SiO2/FePd composite ribbons",

abstract = "The dipolar interactions are investigated through the asymmetric magneto-impedance in FINEMET/SiO2/FePd composite ribbons. The interface between the hard (FePd layer) phase and soft (FINEMET ribbon) phase is coherent by SiO2 layer in FINEMET/SiO2/FePd composite ribbons, which effectively induces dipolar interactions. The contribution of dipolar interaction to the bias field (H b) by asymmetrical giant magneto-impedance and magnetic properties is analyzed. The results show that H b response decreases with the increase of the SiO2 layer thickness, indicating that the linear region near-zero field can be tuned by the thickness of SiO2 layer. These results allow the GMI ratio (58\%) and characteristic frequency (500 kHz) to be optimized. The transverse and longitudinal magnetic domain structures of FINEMET ribbon and FePd film are confirmed, respectively. The composite ribbons with high GMI ratio and low frequency can be applied to linear magnetic sensors.",

keywords = "FePd film, asymmetric giant magnetoimpedance, composite ribbons",

author = "Guo, \{Yong Bin\} and Dao Wang and Wang, \{Zhong Min\} and Lei Ma and Zhao, \{Zhen Jie\}",

note = "Publisher Copyright: {\textcopyright} 2023 Chinese Physical Society and IOP Publishing Ltd.",

year = "2023",

month = jun,

day = "1",

doi = "10.1088/1674-1056/acad6e",

language = "英语",

volume = "32",

journal = "Chinese Physics B",

issn = "1674-1056",

publisher = "Institute of Physics",

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}

TY - JOUR

T1 - Asymmetric magnetoimpedance effect and dipolar interactions of FINEMET/SiO2/FePd composite ribbons

AU - Guo, Yong Bin

AU - Wang, Dao

AU - Wang, Zhong Min

AU - Ma, Lei

AU - Zhao, Zhen Jie

PY - 2023/6/1

Y1 - 2023/6/1

N2 - The dipolar interactions are investigated through the asymmetric magneto-impedance in FINEMET/SiO2/FePd composite ribbons. The interface between the hard (FePd layer) phase and soft (FINEMET ribbon) phase is coherent by SiO2 layer in FINEMET/SiO2/FePd composite ribbons, which effectively induces dipolar interactions. The contribution of dipolar interaction to the bias field (H b) by asymmetrical giant magneto-impedance and magnetic properties is analyzed. The results show that H b response decreases with the increase of the SiO2 layer thickness, indicating that the linear region near-zero field can be tuned by the thickness of SiO2 layer. These results allow the GMI ratio (58%) and characteristic frequency (500 kHz) to be optimized. The transverse and longitudinal magnetic domain structures of FINEMET ribbon and FePd film are confirmed, respectively. The composite ribbons with high GMI ratio and low frequency can be applied to linear magnetic sensors.

AB - The dipolar interactions are investigated through the asymmetric magneto-impedance in FINEMET/SiO2/FePd composite ribbons. The interface between the hard (FePd layer) phase and soft (FINEMET ribbon) phase is coherent by SiO2 layer in FINEMET/SiO2/FePd composite ribbons, which effectively induces dipolar interactions. The contribution of dipolar interaction to the bias field (H b) by asymmetrical giant magneto-impedance and magnetic properties is analyzed. The results show that H b response decreases with the increase of the SiO2 layer thickness, indicating that the linear region near-zero field can be tuned by the thickness of SiO2 layer. These results allow the GMI ratio (58%) and characteristic frequency (500 kHz) to be optimized. The transverse and longitudinal magnetic domain structures of FINEMET ribbon and FePd film are confirmed, respectively. The composite ribbons with high GMI ratio and low frequency can be applied to linear magnetic sensors.

KW - FePd film

KW - asymmetric giant magnetoimpedance

KW - composite ribbons

UR - https://www.scopus.com/pages/publications/85163830525

U2 - 10.1088/1674-1056/acad6e

DO - 10.1088/1674-1056/acad6e

M3 - 文章

AN - SCOPUS:85163830525

SN - 1674-1056

VL - 32

JO - Chinese Physics B

JF - Chinese Physics B

IS - 7

M1 - 070703

ER -

Asymmetric magnetoimpedance effect and dipolar interactions of FINEMET/SiO₂/FePd composite ribbons

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Keywords

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