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Article
Influence of Ga-concentration on the electrical and magnetic properties of magnetoelectric CoGaxFe2− xO4/BaTiO3 composite
Journal of Applied Physics
  • Yan Ni, Iowa State University
  • Zhen Zhang, Iowa State University
  • Cajetan I. Nlebedim, Iowa State University
  • David C. Jiles, Iowa State University
Document Type
Article
Publication Version
Published Version
Publication Date
1-1-2015
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
Date Available
2015-07-17
File Format
application/pdf
Citation Information
Yan Ni, Zhen Zhang, Cajetan I. Nlebedim and David C. Jiles. "Influence of Ga-concentration on the electrical and magnetic properties of magnetoelectric CoGaxFe2− xO4/BaTiO3 composite" Journal of Applied Physics Vol. 117 Iss. 17 (2015) p. 17B906
Available at: http://works.bepress.com/david_jiles/146/