@article{33440, keywords = {Manganese oxide, Multiferroics, Ferromagnetism, Exchange bias, Ferromagnetic materials, Heterojunctions, Antiferromagnetic orderings, Interfaces (materials), Critical thickness, Exchange bias couplings, Ferromagnets, Interfacial exchanges, Linear dichroism}, author = {M Huijben and P Yu and L.W Martin and H.J.A Molegraaf and Y.-H Chu and M.B Holcomb and N Balke and G Rijnders and Ramamoorthy Ramesh}, title = {Ultrathin limit of exchange bias coupling at oxide multiferroic/ ferromagnetic interfaces}, 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.}, year = {2013}, journal = {Advanced Materials}, volume = {25}, number = {34}, pages = {4739-4745}, issn = {09359648}, doi = {10.1002/adma.201300940}, note = {cited By 41}, language = {eng}, }