Virginia TechZhai, JunyiXing, ZengpingDong, ShuxiangLi, JiefangViehland, Dwight D.2014-01-282014-01-282008-08-01Zhai, Junyi; Xing, Zengping; Dong, Shuxiang; et al., "Thermal noise cancellation in symmetric magnetoelectric bimorph laminates," Appl. Phys. Lett. 93, 072906 (2008); http://dx.doi.org/10.1063/1.29697940003-6951http://hdl.handle.net/10919/25201We have found a symmetric Terfenol-D/Pb(Zr,Ti)03 (PZT) bimorph magnetoelectric (ME) laminate, which operates in a bending mode under an unsymmetrical (U-shaped) magnetic bias. It has a giant ME voltage coefficient of about 70 V/cm Oe at resonance. Unlike other symmetric ME laminate structures, the symmetric bimorph structure has the capability to reject thermal noise from a magnetic signal, due to its back-to-back structure. The mechanism for the thermal noise cancellation capability is that the laminate operates in a bending mode (out charges of reverse sign), whereas the thermal noise is contained in a longitudinal mode (out charges have the same sign, allowing cancellation by differential detection). (C) 2008 American Institute of Physics.application/pdfen-USIn CopyrightComposite materialsPhysicsArticle - Refereedhttp://scitation.aip.org/content/aip/journal/apl/93/7/10.1063/1.2969794https://doi.org/10.1063/1.2969794