Ultrathin limit of exchange bias coupling at oxide multiferroic/ ferromagnetic interfaces

Publication Type

Journal Article

Authors

DOI

Abstract

Exchange bias coupling at the multiferroic- ferromagnetic interface in BiFeO3/La0.7Sr0.3MnO3 heterostructures exhibits a critical thickness for ultrathin BiFeO3 layers of 5 unit cells (2 nm). Linear dichroism measurements demonstrate the dependence on the BiFeO3 layer thickness with a strong reduction for ultrathin layers, indicating diminished antiferromagnetic ordering that prevents interfacial exchange bias coupling. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Journal

Advanced Materials

Volume

25

Year of Publication

2013

ISSN

09359648

Notes

cited By 41

Research Areas