Ultrathin Limit of Exchange Bias Coupling at Oxide Multiferroic/Ferromagnetic Interfaces

Mark Huijben; P. Yu; L.W. Martin; Hajo Molegraaf; Y.H. Chu; M.B. Holcomb; N. Balke; Augustinus J.H.M. Rijnders; R. Ramesh

doi:10.1002/adma.201300940

Ultrathin Limit of Exchange Bias Coupling at Oxide Multiferroic/Ferromagnetic Interfaces

Mark Huijben, P. Yu, L.W. Martin, Hajo Molegraaf, Y.H. Chu, M.B. Holcomb, N. Balke, Augustinus J.H.M. Rijnders, R. Ramesh

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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.

Original language	Undefined
Pages (from-to)	4739-4745
Number of pages	7
Journal	Advanced materials
Volume	25
Issue number	34
DOIs	https://doi.org/10.1002/adma.201300940
Publication status	Published - 2013

Keywords

IR-89952
METIS-297083

Access to Document

10.1002/adma.201300940

Cite this

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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.",

keywords = "IR-89952, METIS-297083",

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language = "Undefined",

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T1 - Ultrathin Limit of Exchange Bias Coupling at Oxide Multiferroic/Ferromagnetic Interfaces

AU - Huijben, Mark

AU - Yu, P.

AU - Martin, L.W.

AU - Molegraaf, Hajo

AU - Chu, Y.H.

AU - Holcomb, M.B.

AU - Balke, N.

AU - Rijnders, Augustinus J.H.M.

AU - Ramesh, R.

PY - 2013

Y1 - 2013

N2 - 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.

AB - 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.

KW - IR-89952

KW - METIS-297083

U2 - 10.1002/adma.201300940

DO - 10.1002/adma.201300940

M3 - Article

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VL - 25

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EP - 4745

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