Structural dependence of nonlinear magnetoelectric effect for magnetic field detection by frequency modulation

Date
2013-10-14Author
Li, Menghui
Wang, Yaojin
Shen, Ying
Gao, Junqi
Li, Jiefang
Viehland, Dwight D.
Metadata
Show full item recordAbstract
The structure differences of magnetoelectric (ME) laminates for passive and active mode sensors are discussed. The Fourier coefficient A(1) calculated from the data of alpha(ME)-H-dc indicates that N = 1 (where N is the number of Metglas layers) should be the optimum structure for the active mode. Experimental investigations of the magnetic field sensitivity agree well with this conjecture. For N = 1, the magnetic field sensitivity was 0.66 nT/Hz(0.5), which was 3.1 times larger than for N = 5. (C) 2013 AIP Publishing LLC.