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Full-Text Articles in Electromagnetics and Photonics
Large Converse Magnetoelectric Coupling In Fecov/Lead Zinc Niobate-Lead Titanate Heterostructure, Yajie Chen, Jinsheng Gao, Trifon Fitchorov, Zhuhua Cai, K. S. Ziemer, Carmine Vittoria, V. G. Harris
Large Converse Magnetoelectric Coupling In Fecov/Lead Zinc Niobate-Lead Titanate Heterostructure, Yajie Chen, Jinsheng Gao, Trifon Fitchorov, Zhuhua Cai, K. S. Ziemer, Carmine Vittoria, V. G. Harris
Yajie Chen
Multiferroic behavior was directly verified in a laminated ferroelectric-ferromagnetic heterostructure consisting of a FeCoV thick film (70 μm) and lead zinc niobate-lead titanate (PZN-PT) single crystal. This unique heterostructure demonstrates a significant converse magnetoelectric (CME) effect corresponding to a CME coupling constant of 31 Oe/kV cm⁻¹ It derives from the soft magnetic and magnetostrictive properties (λ=60 ppm) of FeCoV alloy and the superior electromechanical properties (d32=-2800 pC/N) of PZN-PT crystal. The electric field controlled magnetic hysteresis is discussed in terms of a stress-induced anisotropy field model. The theoretical calculation is within 7% of the measured induced field of 240 Oe.