Quantitative determination of anisotropic magnetoelectric coupling in BiFeO3-CoFe2O4 nanostructures

Publication Type

Journal Article

Authors

DOI

Abstract

The transverse and longitudinal magnetoelectric susceptibilities (MES) were quantitatively determined for (001) heteroepitaxial BiFeO3-CoFe 2O4 nanostructures. Both of these MES values were sharply enhanced at magnetic fields below 6 kOe and revealed asymmetric line shapes with respect to the dc magnetic field, demonstrating the strain-induced magnetoelectric effect. The maximum transverse MES, which reached as high as ∼60 mV/cm Oe, was about five times larger than the longitudinal MES. This observation signifies that transverse magnetostriction of the CoFe 2O4 nanopillars is enhanced more than the bulk value due to preferred magnetic domain alignment along the [001] direction coming from compressive, heteroepitaxial strain. © 2010 American Institute of Physics.

Journal

Applied Physics Letters

Volume

97

Year of Publication

2010

ISSN

00036951

Notes

cited By 44

Research Areas