Document Type

Article

Publication Version

Published Version

Publication Date

2015

Journal or Book Title

Journal of Applied Physics

Volume

117

Issue

17

First Page

17B906

DOI

10.1063/1.4916114

Abstract

Multiferroic materials exhibit magnetoelectric (ME) coupling and promise new device applications including magnetic sensors, generators, and filters. An effective method for developing ME materials with enhanced ME effect is achieved by the coupling through the interfacial strain between piezoelectric and magnetostrictive materials. In this study, the electrical and magnetic properties of Ga doped magnetoelectric CoGaxFe2−xO4/BaTiO3composite are studied systematically. It is found that Ga doping improves the sensitivity of magnetoelastic response and stabilizes the magnetic phase of the composites. More importantly, Ga doping reduces the electrical conductivity of composite, as well as the dielectric loss. An enhancement of the electrostrain with doping Ga is also observed. Quantitative estimation indicates that magnetoelectric coupling is enhanced for Ga-doped CoGaxFe2−xO4/BaTiO3 composites. Thus, the present work is beneficial to the practical application of composite CoFe2O4/BaTiO3-based multiferroic materials.

Comments

The following article appeared in J. Appl. Phys. 117, 17B906 (2015) and may be found at http://dx.doi.org/10.1063/1.4916114.

Copyright Owner

American Institute of Physics

Language

en

File Format

application/pdf

Share

COinS