TITLE

Correlation of magnetoelectric coupling in multiferroic BaTiO3-BiFeO3 superlattices with oxygen vacancies and antiphase octahedral rotations

AUTHOR(S)
Lorenz, Michael; Wagner, Gerald; Lazenka, Vera; Schwinkendorf, Peter; Modarresi, Hiwa; Van Bael, Margriet J.; Vantomme, André; Temst, Kristiaan; Oeckler, Oliver; Grundmann, Marius
PUB. DATE
January 2015
SOURCE
Applied Physics Letters;1/1/2015, Vol. 106 Issue 1, p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Multiferroic (BaTiO3-BiFeO3) × 15 multilayer heterostructures show high magnetoelectric (ME) coefficients αME up to 24 V/cmOe at 300 K. This value is much higher than that of a single-phase BiFeO3 reference film (αME = 4.2 V/cm Oe). We found clear correlation of ME coefficients with increasing oxygen partial pressure during growth. ME coupling is highest for lower density of oxygen vacancy-related defects. Detailed scanning transmission electron microscopy and selected area electron diffraction microstructural investigations at 300 K revealed antiphase rotations of the oxygen octahedra in the BaTiO3 single layers, which are an additional correlated defect structure of the multilayers.
ACCESSION #
100416777

 

Related Articles

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics