Virginia TechDong, ShuxiangZhai, JunyiLi, JiefangViehland, Dwight D.2014-02-032014-02-032006-02-01Dong, SX; Zhai, JY; Li, JF; et al., "Small dc magnetic field response of magnetoelectric laminate composites," Appl. Phys. Lett. 88, 082907 (2006); http://dx.doi.org/10.1063/1.21785820003-6951http://hdl.handle.net/10919/25273We have found that small long-type magnetoelectric (ME) laminate composites of magnetostrictive Tb1-xDyxFe2-y and piezoelectric Pb(Zr,Ti)O-3 are quite sensitive to small dc magnetic field (H-dc) variations, when driven by a constant ac magnetic field. The sensitivity limit is H-dc < 10(-3) Oe (10(-7) Tesla) using a constant amplitude low frequencies drive, and H-dc < 10(-4) Oe (10(-8) Tesla) under resonant drive. In addition, an unusual ME switching effect-a 180 degrees phase shift-was observed, in response to changes in the sign of a small H-dc. (c) 2006 American Institute of Physics.application/pdfen-USIn CopyrightCoefficientsPhysicsArticle - Refereedhttp://scitation.aip.org/content/aip/journal/apl/88/8/10.1063/1.2178582https://doi.org/10.1063/1.2178582