Structure, Ferroelectric, and Magnetoelectric Properties of Bulk PZT–NiFe1.9Co0.02О4 – δ Composites

• Published in: Physics of the solid state Vol. 60; no. 9; pp. 1744 - 1751
• Main Authors: Shut, V. N., Laletin, V. M., Syrtsov, S. R., Trublovsky, V. L., Medvedeva, Yu. V., Yanushkevich, K. I., Bushinskii, M. V., Petlitskaya, T. V.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-09-2018; Springer Nature B.V
• Subjects: Composite materials; Dielectric properties; Ferrimagnetism; Ferroelectric materials; Ferroelectricity; Hysteresis loops; Lead zirconate titanates; Magnetic properties; Magnetic resonance; Magnetism; Perovskites; Phase composition; Physics; Physics and Astronomy; Solid State Physics; X-ray diffraction
• ISSN: 1063-7834; 1090-6460
• DOI: 10.1134/S1063783418090317

The phase composition, microstructure, and dielectric, ferroelectric, magnetic, and magnetoelectric properties of bulk ceramic (1 –
x
)PZT–
x
NiFe
1.9
Co
0.02
О
4 – δ
composites with 3–0 connectivity have been studied. Using X-ray diffraction and electron microscopy, it has been established that the ferrimagnetic (spinel- like) and ferroelectric (tetragonal perovskite-like) phases separately exist in the composites of all compositions. The simultaneous existence of ferroelectric and ferrimagnetic properties in the composites is confirmed by measuring their
P
(
E
) and σ(
B
) hysteresis loops and studying the temperature dependences of dielectric and magnetic properties. The synthesized composites have high magnetoelectric characteristics: their voltage coefficient at
x
= 0.4 is 215 mV/A at a frequency of 1 kHz and 130 V/A at an electromechanical resonance frequency of 380 kHz.