Adjustability of resonance frequency by external magnetic field and bias electric field of sandwich magnetoelectric PZT/NFO/PZT composites

• Published in: Applied physics. A, Materials science & processing Vol. 123; no. 7; pp. 1 - 7
• Main Authors: Xu, Ling-Fang, Feng, Xing, Sun, Kang, Liang, Ze-Yu, Xu, Qian, Liang, Jia-Yu, Yang, Chang-Ping
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.07.2017; Springer Nature B.V
• Subjects: Applied physics; Bias; Ceramics; Characterization and Evaluation of Materials; Condensed Matter Physics; Devices; Ferroelectric materials; Laminating; Lead zirconate titanates; Machines; Magnetic fields; Magnetic properties; Magnetic resonance; Magnetostriction; Manufacturing; Materials science; Nanotechnology; Optical and Electronic Materials; Phase transitions; Physics; Physics and Astronomy; Piezoelectricity; Polyvinyl alcohol; Processes; Spinel; Surfaces and Interfaces; Thin Films; X-ray diffraction
• ISSN: 0947-8396; 1432-0630
• DOI: 10.1007/s00339-017-1082-3

Sandwich magnetoelectric composites of PZT/NFO/PZT (PNP) have been prepared by laminating PZT5, NiFe 2 O 4 , and PZT5 ceramics in turn with polyvinyl alcohol (PVA) paste. A systematic study of structural, magnetic and ferroelectric properties is undertaken. Structural studies carried out by X-ray diffraction indicate formation of cubic perovskite phase of PZT5 ceramic and cubic spinel phase of NiFe 2 O 4 ceramic. As increasing the content of PZT5 phase, ferroelectric loops and magnetic loops of PNP composites showed increasing remnant electric polarizations and decreasing remnant magnetic moments separately. Both external magnetic fields and bias voltages could regulate the basal radial resonance frequency of the composites, which should be originated with the transformation and coupling of the stress between the piezoelectric phase and magnetostrictive phase. Such magnetoelectric composite provides great opportunities for electrostatically tunable devices.