Significant reduction of equivalent magnetic noise by in-plane series connection in magnetoelectric Metglas/Mn-doped Pb(Mg1/3Nb2/3)O3-PbTiO3 laminate composites

被引：28

作者：

Fang, Cong ^{[1
,2
]}

Jiao, Jie ^{[1
]}

Ma, Jiashuai ^{[1
,2
]}

Lin, Di ^{[1
]}

Xu, Haiqing ^{[1
]}

Zhao, Xiangyong ^{[1
]}

Luo, Haosu ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Funct Mat & Devices, Shanghai 201800, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2015年 / 48卷 / 46期

基金：

中国国家自然科学基金;

关键词：

magnetoelectric; equivalent magnetic noises; PMNT; magnetic sensors; SENSOR;

D O I：

10.1088/0022-3727/48/46/465002

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this work, we investigated the magnetoelectric (ME) coefficients and equivalent magnetic noises of Metglas/Mn-doped Pb(Mg1/3Nb2/3)O-3-PbTiO3 (PMNT) laminate composites with an in-plane series connected structure. An average-field method as well as a finite element simulation are employed to analyze the variation of the ME coefficients of a number of Mn-doped PMNT fibers (N). Both the theoretical and experimental results verify that the equivalent magnetic noises (EMNs) decrease obviously with an increasing N. Using this structure, the measured EMN of the Metglas/Mn-PMNT composite is as low as 0.87pT/Hz(1/2) at 30Hz for N = 7, which is 1.8 times lower than that for N = 1. Such a low EMN holds considerable promise for practical ME magnetic sensors.

引用

页数：6

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