Layer thickness and sequence effects on resonant magnetoelectric coupling in Ni/Pb(Zr,Ti)O3 cylindrical composites

• Ni/PZT/Ni, Ni/PZT and PZT/Ni cylindrical magnetoelectric composites are electrodeposited.
• Both Ni layer thickness and sequence influence the resonant ME effect.
• The PZT/Ni cylinder has the best ME performance.
• These results provide guidance for designing cylindrical layered ME composites.

Ni/Pb(Zr,Ti)O3/Ni, Ni/Pb(Zr,Ti)O3 and Pb(Zr,Ti)O3/Ni cylindrical layered magnetoelectric (ME) composites with different Ni layer thickness were prepared by electrodeposition. The resonant ME effect was studied in both axial and vertical modes. The optimal DC magnetic field increases with Ni layer thickness and resonant ME voltage coefficients are maximum at intermediate Ni layer thickness for all cases. The resonant ME effect is also influenced by magnetostrictive and piezoelectric layer sequence. The Pb(Zr,Ti)O3/Ni cylinder has the best ME performance because of the highest axial ME voltage coefficient, almost highest vertical ME voltage coefficient and lowest optimal DC magnetic field in both modes. This work provides guidance to optimize ME performance in cylindrical layered ME composites.

The layer sequence and magnetostrictive Ni layer thickness influence the resonant magnetoelectric (ME) effect of the cylindrical layered ME composites.The PZT/Ni cylinder has the best ME performance when both the ME voltage coefficient and optimal magnetic bias are considered.Figure optionsDownload as PowerPoint slide