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Influence of DC bias fields on the linear/nonlinear magnetoelectric effect and the sensitivity in laminate composites
Author(s) -
Liu Yuting,
Jiao Jie,
Li Lingying,
Ma Jiashuai,
Ren Bo,
Chen Jianwei,
Di Wenning,
Zhao Xiangyong,
Luo Haosu,
Shi Ling
Publication year - 2014
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201308187
Subject(s) - metglas , nonlinear system , materials science , sensitivity (control systems) , dc bias , composite material , noise (video) , magnetic field , bandwidth (computing) , acoustics , physics , electronic engineering , electrical engineering , telecommunications , engineering , computer science , image (mathematics) , quantum mechanics , voltage , artificial intelligence , alloy , amorphous metal
Abstract The nonlinear and linear properties in Metglas/piezofiber magnetoelectric composites under DC bias fields ( H bias ) have been investigated via a frequency‐conversion technique. It was found that the major noise near the carrier frequency ( f C ) is caused by the driven source. Both linear ME coefficient and noise floor near f C (bandwidth of noise measurement is 10 Hz) were dependent on H bias , while the nonlinear ME coefficient was independent. A high magnetic‐field sensitivity of 40 pT was obtained after optimizing H bias . (© 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)